This list of USAF units with numbers higher than 999 is sorted by number, with empty lines after each 100 group. The data includes: Unit, Location, 'Tail Code', 'Name' - reporting to/part of/Command - (aircraft assigned or type of operations).

If you have any additional information (especially tail codes and names) or any corrections, please let me know.

At the end of the unit-list is a list of abbreviations, sorted by type: Commands, Divisisions, Centers, Wings, Groups, Squadrons and Locations.

I believe that the assignment of 'four digit unit numbers' is related directly to the command structure, and not to the location of the unit. This is only a theory, which I derived out of the compilation of this list.


USAF four digit units:
======================

- 1000th SATOG     Offut AFB, NE - 1st SPACEG/SPACEW - SPACECOM
                   Det. 1 - Fairchild AFB, WA - SPACECOM
                   Det. 2 - Loring AFB, ME - SPACECOM
                   OL - Los Angeles AFS, CA - SPACECOM
- 1010th SSS       Cheyenne Mountain Complex, CO - SPACECOM
- 1010th CES       Cheyenne Mountain Complex, CO - SPACECOM
- 1012th ABG       Thule AB, Greenland - 1st SPACEG/SPACEW - SPACECOM
- 1014th CONTS     Peterson AFB, CO - SPACECOM
- 1015th ABG       Sondrestrom AB, Greenland - 1st SPACEG/SPACEW - SPACECOM
- 1020th COMPSS    Peterson AFB, CO - SPACECOM
- 1022nd SPTS      North Bay, Ontario, Canada - SPACECOM
- 1025th SATCSM    Holloman AFB, NM - SPACECOM

- 1100th ABW/ABS   Bolling AFB, DC - 76th ALD - 21st AF - MAC
- 1129th SAS       Groom Lake/Area 51, NV, - CIA/USAF - (A-12),
                   (established 1961/62, deactivated 06/1968)
                   Det. 1 - Kadena AB, Okinawa, Japan
- 1130th ATTG      Edwards AFB/North Base, CA 'Special Projects Branch' 
                   - AFFTC - ARDC - AFSC - CIA/USAF - (U-2),
                   (previously known as 4th WRSP (WRSP-4) and Det G,
                   established 1969, deactivated 1974)
- 1155th TECHOS    McClellan AFB, CA - AFSC

- 1361st AVS       Det. 7 - Charleston AFB, SC - AAVS - MAC
                   Det. 11 - Andrews AFB, MD - AAVS - MAC
- 1363rd AVS       - AAVS - MAC / PACAF
- 1365th AVS       Det. 4 - Altus AFB, OK - AAVS - MAC
- 1369th AVS       Det. 1 - Kirtland AFB, NM - AAVS - MAC
- 1370th PMW       - ('ACGS') - (RC-130A)

- 1401st MAS       Det. 3 - Barksdale AFB, LA - MAC
                   - 375th TAW - AMC
- 1402nd MAS       - 375th TAW - AMC

- 1550th ATTW      Kirtland AFB, NM - ARRS - 23rd AF - MAC - (various)

- 1600th MES       Det. 3 - Altus AFB, OK - MAC
- 1605th ABG       Lajes Field, Azores - 1605th MASW - 21st AF - MAC
- 1605th MASW      Lajes Field, Azores - 21st AF - MAC
- 1606th ABW       Kirtland AFB, NM - 23rd AF - MAC
- 1606th SPOLG     Kirtland AFB, NM - 1606th ABW - 23rd AF - MAC
- 1620th TAW(P)    Abu Dhabi/Bateen, UAE - 16th ADIV(P) - MAC
- 1630th TAW(P)    Al Ain, UAE - 16th ADIV(P) - MAC
- 1630th TAS(P)    Al Ain, UAE - 1630th TAW(P) - MAC
- 1631st TAS(P)    Al Ain, UAE - 1630th TAW(P) - MAC
- 1632nd TAS(P)    Al Ain, UAE - 1630th TAW(P) - MAC
- 1640th TAW(P)    Masirah, Oman - 16th ADIV(P) - MAC
- 1650th TAW(P)    Al Dhafra, UAE - 16th ADIV(P) - MAC
- 1660th TAW(P)    Thumrait, Oman - 16th ADIV(P) - MAC
- 1676th TAS(P)    Thumrait, Oman - 1676th TAW(P) - MAC

- 1700th RW(P)     Al Taif AB, Saudi Arabia - 17th ADIV(P) - SAC
- 1701st ARW(P)    Prince Abdul Aziz Apt., Saudi Arabia - 17th ADIV(P) - SAC
- 1701st SW(P)     Prince Abdul Aziz Apt., Saudi Arabia - 17th ADIV(P) - SAC
- 1702nd ARW(P)    Muscat-Seeb, Oman - 17th ADIV(P) - SAC
- 1702nd MSS       Travis AFB, CA - 22nd AF - MAC
- 1703rd ARW(P)    King Khalid IAP, Saudi Arabia - 17th ADIV(P) - SAC
- 1704th RS(P)     Al Taif AB, Saudi Arabia - 1700th RW(P) - 17th ADIV(P) 
                   - SAC - (U-2R, others),
                   (maybe redesignated 4402nd RS - 9th RW - ACC ?) 
- 1706th ARW(P)    Cairo, Egypt - 17th ADIV(P) - SAC
- 1707th ARW(P)    Masirah, Oman - 17th ADIV(P) - SAC
- 1708th BW(P)     Prince Abdul Aziz Apt., Saudi Arabia - 17th ADIV(P) - SAC
- 1709th ARW(P)    Prince Abdul Aziz Apt., Saudi Arabia - 17th ADIV(P) - SAC
- 1711th ARW(P)    Riyadh Mil. City Apt., Saudi Arabia - 17th ADIV(P) - SAC
- 1712th ARW(P)    Abu Dhabi IAP, UAE - 17th ADIV(P) - SAC
- 1713th ARW(P)    Dubai IAP - 17th ADIV(P) - SAC
- 1776th ABW       Andrews AFB, MD - 76th ALD - 21st AF - MAC

- 1815th TES       Wright-Patterson AFB, OH - AFCC
- 1849th EIS       McClellan AFB, CA - AFCC
- 1860th FCS       Richards-Gebaur AFB, MO - ('AFCS') - AFCC - (RC-130A)
- 1866th FCS       Scott AFB, IL - AFCC
- 1869th FCS       - AFCC - (RC-130A)
- 1872nd SS        Keesler AFB, MO - AFCC
- 1876th COMS      USAF Academy, CO - AFCC
- 1877th COMS      Holloman AFB, NM - AFCC
- 1879th COMS      Richards-Gebaur AFB, MO - AFCC
- 1883rd COMS      Beale AFB, CA - AFCC

- 1926th COMS      Robins AFB, GA - AFCC
- 1931st COMG      Elmendorf AFB, AK - AFCC
- 1943rd COMS      Pope AFB, NC - AFCC
- 1946th COMS      Tempelhof Central Apt., Berlin, Germany - AFCC
- 1960th COMS      Kirtland AFB, NM - AFCC
- 1968th COMS      Charleston AFB, SC - AFCC
- 1972nd COMS      Eglin AFB, FL - AFCC
- 1980th COMG      - AFCC
- 1993rd COMS      Dyess AFB, TX - AFCC

- 2000th MES       Scott AFB, IL - AFCC
- 2001st COMS      K. I. Sawyer AFB, MI - AFCC
- 2002nd COMS      Altus AFB, OK - AFCC
- 2012th COMS      Seymour Johnson AFB, NC - AFCC
- 2021st COMS      Tyndall AFB, FL - AFCC
- 2032nd COMS      Rickenbacker ANGB, OH - AFCC
- 2036th COMS      Portland IAP, OR - AFCC
- 2039th COMS      Fairchild AFB, WA - AFCC
- 2042nd COMS      Plattsburgh AFB, NY - AFCC
- 2045th COMG      Andrews AFB, MD - AFCC
- 2049th COMG      McClellan AFB, CA - AFCC
- 2069th COMS      Nellis AFB, NV - AFCC

- 2151st COMS      Little Rock AFB, AR - AFCC

- 2750th ABW       Wright-Patterson AFB, OH - AFLC
- 2762th LS        Palmdale, CA, 'Air Force Plant 42' - AFLC - (U-2, SR-71)

- 2853rd ABG       Robins AFB, GA - AFLC
- 2872nd TS        - AFLC

- 2952th CLSS      Hill AFB, UT - AFLC

- 3096th ADS       Nellis AFB, NV - AFLC
- 3097th ADS       Barksdale AFB, LA - AFLC
- 3098th ADS       Kirtland AFB, NM - AFLC

- 3225th DS        - AFSC - (DC-130A)
- 3245th ABW       Hanscom AFB, MA - ESC - AFMC
- 3246th TW        Eglin AFB, FL, 'AD' - AD - AFSC - (various), 
                   (10/02/1992 redesignated 46th TW, 'ET' - AFDTC - AFMC)
- 3247th TS        Eglin AFB, FL, 'AD' - 3246th TW - AD - AFSC - (F-15, RF-4C),
                   (10/02/1992 redesignated 40th TS (or FLTS or TES), 'ET' 
                   - 46th TW - AFDTC - AFMC - (F-15A, F-15B, F-15C, F-15E, 
                   F-16A, F-16B, F-16C, F-16D, F-111E, F-111F, T-38A, UH-1N))
- 3250th TTW       Lackland AFB, TX - AFSC

- 3300th TTW       Kessler TTC, Kessler AFB, MS - AFTEC
- 3302nd COMPSS    Randolph AFB, TX - ATC
- 3303rd CONTS     Randolph AFB, TX - ATC
- 3304th SS        Lackland AFB, TX, 'ATC NCO Academy' - ATC
- 3305th SS        Randolph AFB, TX - ATC
- 3306th TES       Edwards AFB, CA - ATC
- 3307th TES       Randolph AFB, TX - ATC
- 3314th MES       Randolph AFB, TX - ATC
- 3320th CORES     Lowry AFB, CO - ATC

- 3400th TTW       Lowry TTC, Lowry AFB, CO - AFTEC
- 3480th TTW       Goodfellow AFB, TX - ATC

- 3501st RECURG    Hanscom AFB, MA - ATC
- 3503rd RECURG    Robins AFB, GA - ATC
- 3504th RECURG    Lackland AFB, TX - ATC
- 3505th RECURG    Chanute AFB, IL - ATC
- 3506th RECURG    Mather AFB, CA - ATC
- 3507th ACLASS    Lackland AFB, TX - ATC
- 3588th FTS       Fort Rucker, AL - ATC

- 3600th ADS       Nellis AFB, NV 'Thunderbirds' - ATC - (F-100, F-105, F-4),
                   (redesignated ADS 'Thunderbirds' - 57th OG - 57th WG 
                   - ACC - (F-16C, F-16D))
- 3612th CCTS      Fairchild AFB, WA - 3636th CCTW(S) - ATC
- 3613th CCTS      Homestead AFB, FL - 3636th CCTW(S) - ATC
- 3614th CCTS      Fairchild AFB, WA - 3636th CCTW(S) - ATC
- 3625th TTS       Tyndall AFB, FL - ATC
- 3636th CCTW(S)   Fairchild AFB, WA - ATC
                   Det. - Eielson AFB, AK, ('Arctic Survival School') - ATC
                   Det. - Nellis AFB, NV, ('Desert Survival School') - ATC

- 3700th TTW       Sheppard TTC, Sheppard AFB, TX - AFTEC
- 3785th FTG       Sheppard TTC, Sheppard AFB, TX - ATC/AFTEC

- 3800th ABW       Maxwell AFB, AK - AU - ATC

- 3900th COMPSS    Offut AFB, NE - SAC
- 3902nd ABW       Offut AFB, NE - SAC
- 3903rd SS        Barksdale AFB, LA, 'SAC NCO Academy' - SAC
- 3904th MES       Det. 5 - Barksdale AFB, LA - SAC

- 4007th CCTS      Plattsburgh AFB, NY - (FB-111) - SAC
- 4018th CTS       Dyess AFB, TX, 'B-1 CTS' - SAC
- 4025th RS        Davis-Monthan AFB, AZ - SAC
- 4025th SRS(L)    Lockbourne AFB, OH, to Turner AFB, GA, to Laughlin AFB, TX,
                   'Black Knights' - SAC
- 4028th SRS       Laughlin AFB, TX - SAC
- 4028th SRWS      Laughlin AFB, TX, to Davis-Monthan AFB, AZ - SAC
- 4029th SRS(L)    Turner AFB, GA, to Laughlin AFB, TX - SAC - (paper unit)
- 4029th SRTS      Beale AFB, CA - SAC
- 4080th SRW       Laughlin AFB, TX, to Davis-Monthan AFB, AZ - SAC
- 4080th SRW(L)    Turner AFB, GA - SAC

- 4100th ABG(P)    Tuzla AB, Bosnia-Herzegovina - ACC

- 4200th BW        Beale AFB, CA - SAC
- 4200th SRW       Beale AFB, CA - SAC,
                   (activated 01/01/1965, 06/25/1966 redesignated 9th SRW)
- 4200th TW        Beale AFB, CA - SAC - (B-52H, D-21B)
- 4200th SS/ASS    Beale AFB, CA - 4200th TW - SAC - (Support S) - (B-52H,
                   D-21B),
                   (maybe redesignated 4200th TS)
- 4200th TS        Det. 2 - Barksdale AFB, LA - 4200th TW - SAC,
                   (maybe previously 4200th SS or ASS)
- 4201st TS        Barksdale AFB, LA - 4200th TW - SAC

- 4300th BW(P)     Diego Garcia - 17th ADIV(P) - SAC
- 4315th CCTS      Vandenberg AFB, CA - 30th OG/SPACEW - SAC - (ICBMs)
- 4363rd PACCS     Lockbourne AFB/Rickenbacker ANGB, OH - SAC
- 4364th PACCS     Mountain Home AFB, ID - SAC
- 4392nd ASG       Vandenberg AFB, CA - 1st SAD - SAC

- 4400th OS(P)     Taszar AB, Hungary - ACC
- 4402nd RS        Al Taif AB, Saudi Arabia - 9th RW - ACC - (U-2R, U-2S),
                   (maybe previously 1704th RS(P) - 1700th RW(P) 
                   - 17th ADIV(P) - SAC ?)
- 4404th CW        Dhahran, Saudi Arabia, 'SJ' - 4th TFW(P) - TAC, (F-15E)
- 4408th CCTS      - TAC
- 4409th OSW(P)    Riyadh Mil. City Apt., Saudi Arabia - 17th ADIV(P) - TAC
- 4410th CCTW      Lockbourne AFB, OH - TAC - (AC-130A)
- 4411th J-STARSS  Melborne, FL, 'Joint-STARS Joint Test Force' - AFSC 
                   - (E-A, E-8C),
                   (redesignated 605th TS - AFMC)
- 4413th CCTS      Lockbourne AFB, OH, 'IH' - 4410th CCTW - TAC - (AC-130A)
- 4417th CCTS      Shaw AFB, SC - 363rd TRW - TAC - (RC-130S)
- 4440th TFTG      Nellis AFB, NV, 'Red Flag' - TAC
- 4441st TTG       Eglin AFB, FL, 'Blue Flag' - TAWC - TAC,
                   (06/01/1992 redesignated 79th TEG - AWC - ACC)
                   Det. 3 - Cannon AFB, NM, 'OT' - (EF-111A)
                   Det. 6 - Nellis AFB, NV, 'OT' - (F-4G, F-16C, F-16D),
                   (maybe disestablished)
- 4442nd TCG/TTG   Hurlburt Field, FL, 'USAF Air Ground Operations School'
                   - TAC
- 4449th MSS       Holloman AFB, NM, 'Harvest Bare' - TAC
- 4450th TTG/TG    Nellis AFB/TTR, NV, 'A-Unit' 'TR' - TAC - (Tactical G) 
                   - (A-7D, F-117A, T-38)
- 4450th TS        Nellis AFB/TTR, NV, 'Nightstalkers', 'I-Unit', 'TR' 
                   - 4450th TG - TAC - (F-117A)
- 4451st TS        Nellis AFB/TTR, NV, 'Ghostriders', 'P-Unit', 'TR' 
                   - 4450th TG - TAC - (F-117)
- 4452nd TS        Georgia AFB, CA - 35th TFW - TAC - (F-4D),
                   Nellis AFB/TTR, NV, 'Goat Suckers', 'Q-Unit', 'TR' 
                   - 4450th TG - TAC - (A-7D, F-117)
- 4453rd TES       Nellis AFB/TTR, NV, 'Grim Reapers', 'Z-Unit', 'TR' 
                   - 4450th TG - TAC - (F-117, T-38)
- 4460th HS        Indian Springs AF, NV - TAC
- 4461st TFTS      Luke AFB, AZ - 405th TTW - TAC - (F-15)
- 4477th TES       Nellis AFB/TTR, NV, 'Red Eagles' - TAC
- 4477th TG        Nellis AFB/TTR, NV - TAC - (Tactical G)
- 4485th TS        Eglin AFB, FL - 4441st TTG - TAWC - TAC - (RF-4C, F-4D), to
  4485th TES       Eglin AFB, FL, 'OT' - 4441st TTG - TAWC - TAC - (F-15E),
                   (06/01/1992 redesignated 85th TES 'Wildcats', 'OT' 
                   - 79th TEG - AWC - ACC - (RF-4C, F-15A, F-15C, F-15E, 
                   F-16A, F-16C, F-16D))

- 4500th JSS(P)    Rhein-Main AB, Frankfurt am Main, Germany - AFMC - (E-8A,
                   E-8C)
- 4525th FWW       Nellis AFB, NV, - TAC,
                   (replaced 10/15/1969 by 57th TTW)
- 4529th TG(A)     - TAC
- 4537th FWS       Nellis AFB, NV, 'Willie Weasel College', 'WC' - TAC

- 4750th TS        Tyndall AFB, FL - 475th WEG - ADWC - TAC - (F-106),
                   (redesignated 475th TS - 475th WEG - AWC - ACC, 
                   disestablished ?)
- 4786th TS        Edwards AFB/North Base, CA - ADWC - TAC - (YF-12A, SR-71),
                   (was 'SR-71/YF-12 Test Force' (06/1965 to 01/16/1970))

- 4900th TS        Kirtland AFB, NM - SWC - AFSC - (various)
- 4950th TG        Nellis AFB/TTR, NV - (Test G)
- 4950th TW        Wright-Patterson AFB, OH - ASD - STC/AFSC - (various)
- 4951st TS        Wright-Patterson AFB, OH - 4950th TW, 'OH' - AFSC - 
                   (NC-135B, OC-135B, others),
                   Det. 1 - Andrews AFB, MD - (C-21A, C-135A)
                   (3 OC-135B to Offut AFB, NE - 55th WG - ACC, 
                   probably disestablished)
- 4952nd TS        Wright-Patterson AFB, OH - 4950th TW, 'OH' - AFSC - 
                   (NKC-135A, CT-39A, T-39B, others),
                   (moved to Edwards AFB, CA, redesignated 452nd TS (or FLTS),
                   'ED' - 412th OG - 412th TW - AFFTC - AFMC - (C-18A, EC-18B,
                   EC-18D, C-135A, C-135C, C-135E, EC-135E, NC-135A, NKC-135E,
                   NC-141A, CT-39B))
                   Det. - Kirtland AFB, NM - (NKC-135A),
                   (disestablished ?)
- 4953rd TS        Wright-Patterson AFB, OH - 4950th TW - AFSC - (NC-130A, 
                   NC-141A, CT-39A, NT-39A, T-39B),
                   (disestablished, all aircraft to Edwards AFB, CA 
                   - 452nd TS - 412th TW - AFFTC - AFMC)
- 5021st TOS       Elmendorf AFB, AK - AAC - (T-33)
- 5071st ABS       King Salomon Apt., AK - AAC
- 5072nd ABS       Galena Apt., AK - AAC
- 5073rd ABG       Shemya AFB, AK - AAC

- 6010th WWS(P)    Korat RTAB, Thailand, 'ZB' - 388th TFW - PACAF - (F-105G)
- 6091st RS        - PACAF - (C-130B-II)

- 6112th ABW       Misawa AB, Japan - 5th AF - PACAF
- 6171th ABS       Kwang Ju AB, Korea - 5th AF - PACAF

- 6510th TW        Edwards AFB, CA, 'ED' - AFFTC - AFSC - (F-15, RF-4C),
                   (redesignated 412th TW - AFFTC - AFMC)
- 6512th TG        Edwards AFB/North Base, CA, 'Special Projects Branch' (?)
                   - AFFTC - ARDC - AFSC - (Test G) - (U-2, others),
                   (established 1957, redesignated 412th TG - 412th TW 
                   - AFFTC - AFMC - (B-2A))
- 6513th TES       Edwards AFB/North Base, CA, 'Red Hats' - 6510th TW - AFFTC 
                   - AFSC - (MiGs, Suchois, others),
                   (redesignated 413th TS (or FLTS) - 412th OG - 412th TW - 
                   AFFTC - AFMC - (EC-130V, others))
- 6514th TS        Edwards AFB, CA - 6545th TG - AFFTC - AFSC - (DC-130A, 
                   DC-130E, DC-130H, NC-130A, NC-130B, AQM-34, others),
                   (redesignated 514th TS - 545th TG - 412th TW - AFFTC 
                   - AFMC (HC-130H, NC-130H, HH-1H, NCH-53A, HH-53C, others))
- 6515th TS        Edwards AFB, CA, 'F-15 CTF (Combined Test Force)', 'ED' - 
                   6510th TW - AFFTC - AFSC - (F-15A, F-15B, F-15C, F-15D),
                   (redesignated 415th TS, 'ED' - 412th OG - 412th TW - AFFTC 
                   - AFMC (F-15A, F-15B, F-15C, F-15D, F-15E)) 
- 6516th LTS       Edwards AFB, CA - AFFTC - AFSC
- 6519th TS        Edwards AFB, CA - 6510th TW - AFFTC - AFSC,
                   (redesignated 419th TS (or FLTS), 'ED' - 412th TW
                   - 412th OG - AFFTC - AFMC (B-1B, B-52H)) 
- 6545th TG        Hill AFB/UTTR, UT - AFSC - (Test G) - (UTTR, RPVs),
                   (redesignated 545th TG - 412th TW - AFFTC - AFMC)
- 6550th SW        Patrick AFB, FL - AFSC - (JC-130A)
- 6585th TG        Holloman AFB, NM - AD - AFSC - (Test G),
                   (redesignated 585th TG - AFDTC - AFMC - (Test G), 
                   redesignated 46th TG - AFDTC - AFMC - (Test G))
- 6586th TS        Holloman AFB, NM - 6585th TG - AD - AFSC - (AT-38B),
                   (redesignated 586th TS, 'HT' - 585th TG - AFDTC - AFMC,
                   redesignated 586th FLTS, 'HT' - 46th TG - AFDTC - AFMC)
- 6592nd ABG       Los Angeles AFB, CA - SMSC - AFSC/AFMC
- 6593rd TS        Hickham AFB, HI - 6594th TG/ABG - AFSC - (JC-130)
- 6594th ABG       Kirtland AFB, NM - AFFTC - AFSC - (JC-130B)
- 6594th TG        Kirtland AFB, NM - SWC - AFSC - (various) - (Test G)
- 6595th ATW       - AFSC

- 6786th TS        Edwards AFB/North Base, CA - AFSC

- 6903rd ESG       Osan AB, Korea - ESC
- 6906th ESS       San Antonio, TX - 6960th ESW - ESC
- 6910th ESW       Lindsey AS, Germany - ESC
- 6911th ESS       Hahn AB, Germany - 6910th ESW - ESC
- 6912th ESG       Tempelhof Central Apt., Berlin, Germany - ESC
- 6913th ESS       Augsburg, Germany - 6910th ESW - ESC
- 6915th ESS       Bad Aibling, Germany - 6910th ESW - ESC
- 6916th ESS       Hellenikon AB, Greece - ESC
- 6917th ESG       San Vito AS, Italy - ESC
- 6918th ESS       Sembach AB, Germany - 6910th ESW - ESC
- 6920th ESG       Misawa AB, Japan - ESC
- 6922nd ESS       Clark AB, Philippines - ESC
- 6923rd SPTS      San Antonio, TX - 6960th ESW - ESC
- 6924th ESS       Wheeler AFB, HI - ESC
- 6931st ESS       Iraklion AS, Crete, Greece - ESC
- 6940th ESW       Fort George G. Meade, MD - ESC
- 6941st ESS       Fort George G. Meade, MD - 6940th ESW - ESC
- 6942nd ESS       Fort George G. Meade, MD - 6940th ESW - ESC
- 6943rd ESS       Fort George G. Meade, MD - 6940th ESW - ESC
- 6944th ESS       Fort George G. Meade, MD - 6940th ESW - ESC
- 6947th ESS       Homestead AFB, FL - 6940th ESW - ESC
- 6948th ESS       San Antonio, TX - 6960th ESW - ESC
- 6949th ESS       Offut AFB, NE - ESC
- 6950th ESG       RAF Chicksands, UK - ESC
- 6952nd ESS       RAF Alconbury, UK - ESC
- 6960th ESW       San Antonio, TX - ESC
- 6960th SPOLS     San Antonio, TX - 6960th ESW - ESC
- 6964th COMPSSS   San Antonio, TX - 6960th ESW - ESC
- 6981st ESS       Elmendorf, AK - ESC
- 6985th ESS       Eielson AFB, AK - ESC
- 6988th ESS       RAF Mildenhall, UK - ESC
- 6990th ESG       Kadena AB, Okinawa, Japan - ESC
- 6993rd ESS       San Antonio, TX - 6960th ESW - ESC
- 6994th ESS       Fort George G. Meade, MD - 6940th ESW - ESC

- 7020th ABG       RAF Fairford, UK - USAFE

- 7100th ABG       Lindsey AS, Germany - USAFE

- 7206th ABG       Hellenikon AB, Greece - USAFE
- 7217th ABG       Ankara AS, Turkey - 'TUSLOG' - USAFE
- 7241st ABG       Izmir AS, Turkey - USAFE
- 7274th ABG       RAF Chicksands, UK - USAFE
- 7275th ABG       San Vito AS, Italy - USAFE
- 7276th ABG       Iraklion AS, Greece - USAFE

- 7350th ABG       Tempelhof Central Apt., Berlin, Germany - USAFE

- 7406th CSS       - (C-130A-II)
- 7440th CW(P)     Incirlik AB, Turkey - USAFE

Abbreviations:
==============
AAC      - Alaskan Air Command                          ==> 5000 - 5099+
ACC      - Air Combat Command                           ==> 1700 - 1799
                                                            3900 - 4599+
AFCC     - Air Force Communications Command             ==> 1800 - 2199+
AFLC     - Air Force Logistic Command                   ==> 2700 - 3099
AFMC     - Air Force Materiel Command                   ==> 3200 - 3299
                                                            4900 - 4999
                                                            6500 - 6799+
AFSC     - Air Force Systems Command                    ==> 3200 - 3299
                                                            4900 - 4999
                                                            6500 - 6799+
AFTEC    - Air Force Training & Education Command       ==> 3300 - 3899
AMC      - Air Mobility Command                         ==> 1100 - 1799
ATC      - Air Training Command                         ==> 3300 - 3899
ESC      - Electronic Security Command                  ==> 6900 - 6999
MAC      - Military Airlift Command                     ==> 1100 - 1799
PACAF    - Pacific Air Forces                           ==> 6000 - 6199+
SAC      - Strategic Air Command                        ==> 1700 - 1799
                                                            3900 - 4399
SPACECOM - Space Command                                ==> 1000 - 1099
STC      - Systems Test Command                         ==> 4900 - 4999
TAC      - Tactical Air Command                         ==> 4400 - 4599+
USAFE    - United States Air Force in Europe            ==> 7000 - 7499+

AF       - Air Force - MAC / SAC / TAC / AMC / ACC / PACAF / USAFE
AAVS     - Aerospace AudioVisual Service - MAC
ADIV     - Air Division - AF
ADIV(P)  - Air Division (Provisional) - AF
ALD      - Airlift Division - MAC
AD       - Armament Division - AFSC
ASD      - Aeronautical Systems Division - AFSC
SAD      - Strategic Aerospace Division - SAC
ARRS     - Aerospace Rescue & Recovery Service - MAC

ADWC     - Air Defence Weapon Center - TAC
AFDTC    - Air Force Development Test Center - AFSC / AFMC
AFFTC    - Air Force Flight Test Center - AFSC / AFMC
AFTEC    - Air Force Test & Evaluation Center - AFSC / AFMC
AFOTEC   - Air Force Operational Test & Evaluation Center - AFMC
ALC      - Air Logistics Center - AFSC / AFMC
ARDC     - Aerospae Research & Development Center - AFSC / AFMC
AWC      - Air Warfare Center - ACC
ESC      - Electronic Systems Center - AFSC / AFMC
SMSC     - Space & Missile Sytems Center - AFSC / AFMC
SWC      - Special Weapons Center - AFSC / AFMC
TAWC     - Tactical Air Warfare Center - TAC
TTC      - Technical Training Center - ATC / AFTEC

AU       - Air University - ATC / AFTEC
CTS      - Combat Training School - SAC
FWS      - Fighter Weapons School - TAC

ABW      - Air Base Wing
ARW(P)   - Airborne Refueling Wing (Provisional)
ATTW     - Aircrew Training & Test Wing
ATW      - Aerospace Test Wing
BW       - Bomb Wing
BW(P)    - Bomb Wing (Provisional)
CCTW     - Combat Crew Training Wing
CCTW(S)  - Combat Crew Training Wing (Survival)
CW       - Composite Wing
CW(P)    - Composite Wing (Provisional)
ESW      - Electronic Security Wing
FWW      - Fighter Weapons Wing
MASW     - Military Airlift Support Wing
OSW(P)   - Operational Support Wing (Provisional) (?)
PMW      - Photo Mapping Wing
RW(P)    - Reconnaissance Wing (Provisional)
SPACEW   - Space Wing
SRW      - Strategic Reconnaissance Wing
SRW(L)   - Strategic Reconnaissance Wing (Light)
SW       - Strategic Wing (?) or Support Wing (?)
SW(P)    - Strategic Wing (?) or Support Wing (Provisional) (?)
TAW      - Tactical Airlift Wing
TAW(P)   - Tactical Airlift Wing (Provisional)
TRW      - Tactical Reconnaissance Wing
TTW      - Technical Training Wing
TW       - Test Wing
WG       - Wing

ABG      - Air Base Group
ABG(P)   - Air Base Group (Provisional)
ASG      - Aerospace Support Group
ATTG     - Air Technical Training Group - ('Special Projects Branch')
COMG     - Communications Group
ESG      - Electronic Security Group
OG       - Operations Group
RECURG   - Recruiting Group
SPACEG   - Space Group
SATOG    - Satellite Operations Group
SPOLG    - Security Police Group
TCG      - Tactical Control Group
TEG      - Test & Evaluation Group
TFTG     - Tactical Fighter Training Group
TG       - Tactical Group - (Tactical G)
TG       - Test Group - (Test G)
TG(A)    - Test Group (Atomic)
TTG      - Tactical Training Group
TUSLOG   - Turkey-US Logistics Group
WEG      - Weapons Evaluation Group

ABS      - Air Base Squadron
ACGS     - Aerospace Cartographic & Geodetic Squadron
ACLASS   - Airman Classification Squadron
ADS      - Aviation Depot Squadron
ADS      - USAF Air Demonstration Squadron ('Thunderbirds')
ASS      - Air Support Squadron
AVS      - AudioVisual Squadron
CCTS     - Combat Crew Training Squadron
CES      - Civil Engineering Squadron
CLSS     - Combat Logistics Support Squadron
COMS     - Communications Squadron
CORES    - Correction & Rehabilitation Squadron
CONTS    - Contracting Squadron
CSS      - Combat Support Squadron
COMPSS   - Computer Services Squadron
COMPSSS  - Computer Services Support Squadron
DS       - Drone Squadron
EIS      - Electronics Installations Squadron
ESS      - Electronic Security Squadron
FCS      - Facility Checking Squadron
FLTS     - Flight Test Squadron
FTS      - Flying Training Squadron
HS       - Helicopter Squadron
J-STARSS - Joint-STARS (Surveillance Target Attack Radar System) Squadron
JSS(P)   - Joint-STARS (Surveillance Target Attack Radar System) Squadron
           (Provisional)
LS       - Logistics Squadron
LTS      - Logistics Test Squadron
MAS      - Military Airlift Squadron
MES      - Management Engineering Squadron
MSS      - Mobility Support Squadron
OS(P)    - Operations Squadron (Provisional)
PACCS    - Post Attack Command & Control Squadron
RS       - Reconnaissance Squadron
RS(P)    - Reconnaissance Squadron (Provisional)
SAS      - Special Activities Squadron
SATCSM   - Satellite Communications Squadron, Mobile
SPOLS    - Security Police Squadron
SPTS     - Support Squadron
SRS      - Strategic Reconnaissance Squadron
SRS(L)   - Strategic Reconnaissance Squadron (Light)
SRTS     - Strategic Reconnaissance Training Squadron
SRWS     - Strategic Reconnaissance Weather Squadron
SS       - School Squadron
SS       - Support Squadron
SSS      - Special Security Squadron
TAS(P)   - Tactical Airlift Squadron (Provisional)
TES      - Test & Evaluation Squadron
TFTS     - Tactical Fighter Training Squadron
TECHOS   - Technical Operations Squadron
TOS      - Tactical Operations Squadron
TS       - Test Squadron
WRSP     - Weather Research Squadron Provisional
WWS(P)   - Wild Weasel Squadron (Provisional)

Div.     - Division
Det.     - Detachment
OL       - Operations Location

AB       - Air Base
AFB      - Air Force Base
AF       - Air Field / Auxiliary Field
ANGB     - Air National Guard Base
AS       - Air Station
Apt.     - Airport
IAP      - International Airport
MAP      - Municipal Airport
RAF      - Royal Air Force (airbase)
RTAFB    - Royal Thai Air Force Base
TTR      - Tonopah Test Range
UTTR     - Utah Test and Training Range

(c) 1995, 1996 by Andreas Gehrs-Pahl