- No. 901 (County of London) Balloon Squadron AAF
-
- 16 May 1938
- 5 Flights of 9 balloons
- Woolwich, Abbey Wood, Kidbrooke
- No. 902 (County of London) Balloon Squadron AAF
-
- 16 May 1938
- 5 Flights of 9 balloons
- Kidbrooke, Brixton
- No. 903 (County of London) Balloon Squadron AAF
- 16 May 1938 - Unknown 1944
- 5 Flights of 9 balloons.
- Amalgamated with 902 Sqn.
- Brixton / Forest Hill
- No. 904 (County of Surrey) Balloon Squadron AAF
- 16 May 1938
- 5 Flights of 9 balloons
- Clapham
- No. 905 (County of Surrey) Balloon Squadron AAF
- 16 May 1938 - Unknown 1944
- 5 Flights of 9 balloons. Amalgamated with 901 Sqn
- Kensington, Clapham
- No. 906 (County of Middlesex) Balloon Squadron AAF
- 7 Jul 1938
- 5 Flights of 9 balloons
- Hampstead, Kensington
- No. 907 (County of Middlesex) Balloon Squadron AAF
- 16 May 1938
- 5 Flights of 9 balloons
- Harringay / Woodberry Down
- No. 908 (County of Essex) Balloon Squadron AAF
- 5 Jul 1938
- 5 Flights of 9 balloons
- Wanstead, Harringay
- No. 909 (County of Essex) Balloon Squadron AAF
- 16 May 1938
- 5 Flights of 9 balloons
- West Ham, East Ham
- No. 910 (County of Essex) Balloon Squadron AAF
- 5 Jul 1938
- 5 Flights of 9 balloons, (3 Water-borne (Aug 1940))
- Dagenham, East Ham.
- No. 911 (County of Warwick) Balloon Squadron AAF
- Jan 1939 – Unknown
- 4 Flights of 8 balloons (48 balloons in Aug 1940)
- West Bromwich, Chelmsford, Erdington (Dec 1943).
- No. 912 (County of Warwick) Balloon Squadron AAF
- Jan 1939 -Unknown
- 4 Flights of 8 balloons (24 balloons in Aug 1940)
- Brockworth, Gloucester.
- No. 913 (County of Warwick) Balloon Squadron AAF
- Jan 1939 -Unknown
- 3 Flights of 8 balloons
- Erdington / Sutton Coldfield, Chelmsford
- No. 914 (County of Warwick) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 4 Flights of 8 balloons (40 balloons in Aug 1940)
- Wythall / Northfield.
- No. 915 (County of Warwick) Balloon Squadron AAF
- Jan 1939 -Unknown
- 4 Flights of 8 balloons (40 balloons in Aug 1940)
- Bourneville / Rowkeath, Chelmsford.
- No. 916 (County of Warwick) Balloon Squadron AAF
- Jan 1939 – Unknown, Jun 1944 - Unknown
- 3 Flights of 8 balloons (32 balloons in Aug 1940)
- Coventry
- Reformed for Anti-'Diver' duties
- No. 917 (County of Warwick) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 3 Flights of 8 balloons
- Coventry
- No. 918 (County of Derby) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 3 Flights of 8 balloons ( 32 balloons in Aug 1940)
- Derby / Alveston.
- No. 919 (West Lancashire) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 4 Flights of 8 balloons. (52 balloons (12 Water-borne) in Aug 1940)
- Birkenhead.
- No. 920 Balloon Squadron AAF
- Jan 1939 - pre Dec 1943
- 4 Flights of 8 balloons (A & B Flights later 12 balloons each, C & D retained 8 each)
- Derry
- No. 921 (West Lancashire) Balloon Squadron AAF
- Jan 1939 - 20 Feb 1943
- 3 Flights of 8 balloons (48 balloons in Aug 1940)
- Liverpool / Fazakerley.
- No. 922 (West Lancashire) Balloon Squadron AAF
- Jan 1939 - pre Dec 1943
- 4 Flights of 8 balloons
- Warrington / Curerdley
- No. 923 (West Lancashire) Balloon Squadron AAF
- Jan 1939 - Unknown, Jun 1944 - Unknown
- 4 Flights of 8 balloons
- Runcorn / Birkenhead
- Reformed for Anti-'Diver' duties
- No. 924 Balloon Squadron AAF
- Jan 1939 Unknown
- 4 Flights of 8 balloons (24 balloons in Aug 1940)
- Southampton / Eastleigh.
- No. 925 (East Lancashire) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 3 Flights of 8 balloons (40 balloons in Aug 1940)
- Manchester
- No. 926 (East Lancashire) Balloon Squadron AAF
- Unknown - pre Jun 1944
- 3 Flights of 8 balloons (40 balloons in Aug 1940)
- Bowlee / Manchester
- No. 927 (County of Gloucester) Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons (32 balloons in Aug 1940)
- Bristol.
- No. 928 Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons (10 Water-borne Aug 1940)
- Felixstowe / Harwich
- No. 929 Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons (7 Water-borneAug 1940)
- South Queensferry
- No. 930 (Hampshire) Balloon Squadron AAF
- Jan 1939 - pre Dec 1943
- 3 Flights of 8 balloons (50 balloons (10 Water-borne ) in Aug 1940)
- Southampton.
- No. 931 (Hampshire) Balloon Squadron AAF
- Jan 1939 - pre Dec 1943
- 3 Flights of 8 balloons
- No. 932 (Hampshire) Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons (32 balloons in Aug 1940)
- Portsmouth
- No. 933 (Hampshire) Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons
- Portsmouth / Gosport
- No. 934 (County of Devon) Balloon Squadron AAF
- Jan 1939 Unknown
- 5 Flights of 8 balloons (24 balloons in Aug 1940)
- Plymouth.
- No. 935 (County of Glamorgan) Balloon Squadron AAF
- Jan 1939 Unknown
- 2 Flights of 8 balloons (24 balloons in Aug 1940)
- Plymouth/Filton.
- No. 936 (County of Northumberland) Balloon Squadron AAF
- 20 Feb 1939 - 4 Jun 1943
- 4 Flights of 8 balloons (4 Water-borne Aug 1940)
- Newcastle upon Tyne
- Amalgamated with No 937 on 4 Jun 1943
- No. 937 (County of Northumberland) Balloon Squadron AAF
- 20 Feb 1939 - 4 Jun 1943
- 4 Flights of 8 balloons (40 balloons (3 Water-borne) in Aug 1940)
- Newcastle upon Tyne
- Amalgamated with No 936 on 4 Jun 1943
- No. 936/937 Balloon Squadron AAF
- 4 Jun 1943 - 1 Dec 1944
- No. 938 (County of Northumberland) Balloon Squadron AAF
- 20 Feb 1939 - 1 Dec 1944
- 3 Flights of 8 balloons (48 balloons in Aug 1940)
- Stockton on Tees / Billingham
- No. 939 (West Riding) Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons
- Sheffield
- No. 940 (West Riding) Balloon Squadron AAF
- Unknown - pre Jun 1944
- Sheffield
- 3 Flights of 8 balloons
- No. 941 (West Riding) Balloon Squadron AAF
- Jan 1939 Unknown
- 3 Flights of 8 balloons (40 balloons in Aug 1940)
- Sheffield / Sunderland (May 1943)
- Amalgamated with 939 due to lack of volunteers
- No. 942 (East Riding) Balloon Squadron AAF
- 25 Jan 1939 - 1 Jan 1942
- 3 Flights of 8 balloons 42 balloons (24 Water-borne) in Aug 1940
- RAF Sutton on Hull
- Amalgamated with 943 - 1 Jan 1942
- No. 943 (East Riding) Balloon Squadron AAF
- 25 Jan 1939 - 1 Jan 1942
- 3 Flights of 8 balloons (32 balloons in Aug 1940)
- RAF Sutton on Hull
- Amalgamated with 942 - 1 Jan 1942
- No. 942/943 (East Riding) Balloon Squadron AAF
- 1 Jan 1942 - 31 Aug 1944
- Anti-'Diver- duties from 31 Jul 1944
- No. 944 (East Riding) Balloon Squadron AAF
- 25 Jan 1939 -26 Apr 1942
- 3 Flights of 8 balloons
- RAF Sutton on Hull
- No. 945 (City of Glasgow) Balloon Squadron AAF
- Jan 1939 - Unknown, Jun 1944 - Unknown
- 4 Flights of 8 balloons (40 balloons in Aug 1940)
- Glasgow
- Reformed in 22 Balloon Centre for Anti-'Diver' duties
| - No. 946 (City of Glasgow) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944
- 4 Flights of 8 balloons (48 balloons in Aug 1940)
- Renfrew
- No. 947 (City of Glasgow) Balloon Squadron AAF
- Jan 1939 - pre Jun 1944, Jun 1944 - Unknown
- 3 Flights of 8 balloons (32 balloons in Aug 1940)
- Glasgow
- Reformed in 22 Balloon Centre for Anti-'Diver' duties
- No. 948 Balloon Squadron RAF
- Oct 1939 - pre Dec 194
- 24 balloons in Aug 1940
- Rosyth
- No. 949 Balloon Squadron RAF Oct 1949 - Unknown, Jun 1944 - Unknown
-
- 32 balloons in Aug 1940
- Crewe
- Reformed in 23 Balloon Centre for Anti-'Diver' duties
- No. 950 Balloon Squadron RAF
- Unknown – Unknown
- Lyness, Orkney – Feb 1940, Kirkwall, Orkney - 1944
- 32 balloons in Aug 1940
- No. 951 Balloon Squadron RAF
- Unknown - pre Dec 1943
- 40 balloons in Aug 1940
- Bristol until 19 Jun 1944 (Norwich) and then Anti-'Diver' duties
- No. 952 Balloon Squadron RAF
- Nov 1939
- Sheerness
- 40 balloons (32 Water-borne) in Aug 1940
- No. 953 Balloon Squadron RAF
-
- Cardiff 1943/44
- 39 balloons (7 Water-borne) in Aug 1940
- 1943/44 -, Anti-'Diver' duties from Jun 1944
- No. 954 Balloon Squadron RAF
-
- Cobham
- No. 955 Balloon Squadron RAF
- 1943/44
- Weston-super-Mare
- No. 956 Balloon Squadron RAF
-
- 24 balloons in Aug 1940
- No. 957 Balloon Squadron RAF
- Jul 1940 – Unknown
- Yeovil
- 24 balloons in Aug 1940
- No. 958 Balloon Squadron RAF
Jul 1940 - Unknown - Swansea
- 25 balloons (3 Water-borne) in Aug 1940
- Reformed in 23 Balloon Centre for Anti-'Diver' duties
- No. 959 Balloon Squadron RAF
- 27 Aug 1940 Unknown
- RAF
- Feb 1940 - Unknown
- Lyness, Orkney to Dec 1943, Canterbury 1944 on
- 24 balloons (16 Water-borne) in Aug 1940
- No. 961 Balloon Squadron RAF
- Jul 1940 – Unknown
- Dover
- 8 Water-borne balloons (Aug 1940)
- No. 962 Balloon Squadron RAF
- Sep 1940 - pre Dec 1943
- Milford Haven
- 24balloons (9 Water-borne) in Aug 1940
- No. 963 Balloon Squadron RAF
- Accrington - pre Dec 1943
- No. 964 Balloon Squadron RAF
- Aug 1940 - Unknown
- Torpoint, Plymouth 1944 on
- 24 balloons (6 Water-borne) in Aug 1940
- No. 965 Balloon Squadron RAF
- Jul 1940 - Unknown
- Port Talbot
- 16 balloons in Aug 1940
- Reformed in 23 Balloon Centre for Anti-'Diver' duties
- No. 966 Balloon Squadron RAF
- Sep 1940 - Unknown
- Newport, Monmouthshire, moved to RAF Seal south of London from Jun 1944
- 40 balloons in Aug 1940
- Reformed in 23 Balloon Centre for Anti-'Diver' duties
- No. 967 Balloon Squadron RAF
- Unknown - pre Dec 1943
- Ardrossan
- 48 balloons in Aug 1940
- No. 968 Balloon Squadron RAF
- Unknown - pre Dec 1943
- Belfast
- 16 balloons (8 Water-borne) in Aug 1940
- No. 969 Balloon Squadron RAF
- Jul 1940 – Unknown , - Unknown
- Barry pre Dec 1943, Great Yarmouth from Jun 1944
- 16 balloons in Aug 1940
- Reformed in 23 Balloon Centre for Anti-'Diver' duties
- No. 970 Balloon Squadron RAF
- Barrow-in-Furness - pre Dec 1943
- No. 971 Balloon Squadron RAF
- 1944
- AHQ Eastern Mediterranean
- No. 972 Balloon Squadron RAF
- Egypt
- No. 973 Balloon Squadron RAF
- 1944
- AHQ Eastern Mediterranean
- No. 974 Balloon Squadron RAF
- Egypt
- 2nd Tactical Air Force (2nd TAF or 2 TAF)
- No. 975 Balloon Squadron RAF
- 1944
- No. 242 Group RAF
- No. 976 Balloon Squadron RAF
- 1944
- 2nd TAF
- No. 977 Balloon Squadron RAF
- 1944
- Mediterranean Coastal Air Forces
- No. 978 Balloon Squadron RAF
- 1941 1944
- 3rd TAF
- No. 979 Balloon Squadron RAF
- 1944
- 3rd TAF
- No. 980 Balloon Squadron RAF
- Unknown - 6 Jun 1945
- 2nd TAF (1944 on)
- 980 Sqn defended Abadan from 1942 and Khosrowabad before being moved via Jordan to the Suez Canal and then Italy
- No. 981 Balloon Squadron RAF
- 1941-Unknown
- Mediterranean Coastal Air Forces
- Reformed in UK for Anti-'Diver' duties - 1944
- No. 982 Balloon Squadron RAF
- 1944
- Mediterranean Coastal Air Forces
- No. 983 Balloon Squadron RAF
- 1944
- Mediterranean Coastal Air Forces
- No. 984 Balloon Squadron RAF
- 1944
- No. 222 Group RAF
- No. 985 Balloon Squadron RAF
- 1944
- No. 242 Group RAF
- No. 986 Balloon Squadron RAF
- 1944
- Malta
- No. 987 Balloon Squadron RAF
- 1 Sep 1943-Unknown
- No. 224 Group RAF (1944 on)
- No. 988 Balloon Squadron RAF
- No. 989 Balloon Squadron RAF
- No. 990 Balloon Squadron RAF
- 1944
- No. 222 Group AAF
- No. 991 Balloon Squadron RAF
- 2nd TAF
- No. 992 (Mobile) Balloon Squadron RAF
- Dec 1943 -
- No 30 (Balloon Barrage) Group RAF, Great Yarmouth
- Jun 1944 to 85 Group, for the defence of ports.
- No. 993 (Mobile) Balloon Squadron RAF
- Dec 1943
- No 30 (Balloon Barrage) Group RAF, Chelmsford
- No. 994 (Mobile) Balloon Squadron RAF
- Dec 1943
- No 30 (Balloon Barrage) Group RAF, Canterbury
- Jun 1944 to 85 Group,
- No. 995 (Mobile) Balloon Squadron RAF
- Dec 1943
- No 30 (Balloon Barrage) Group RAF, Titchfield
- No. 996 Balloon Squadron RAF
- No. 85 Group RAF
- Mobile Unit for the defence of ports
- No. 997 Balloon Squadron RAF
- Weymouth (1944)
- Mobile Unit for the defence of ports
- No. 998 Balloon Squadron RAF
- Brighton (1944)
- Mobile Unit for the defence of ports
- No. 999 Balloon Squadron RAF
- Paignton (1944)
- Mobile Unit for the defence of ports
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