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