ULTRA "Main Series of Reports to Allied Commands", file references for 1944–45
Year/month
DEFE 3/reference
Dates messages deciphered
Message numbers
1944
January
16
27 Dec 43–1 Jan 44
VL 2751–3000
17
1–5
VL 3001–3250
18
5–8
VL 3251–3500
19
8–12
VL 3501–3750
129
12–15
VL 3751-4000
130
15–19
VL 4001–4250
131
19–22
VL 4251–4500
132
22–25
VL 4501–4750
133
25–28
VL 4751–5000
134
28–31
VL 5001–5250
135
31 Jan–4 Feb
VL 5251-5500
February
136
4–8
VL 5501–5750
137
8–10
VL 5751–6000
138
10–14
VL 6001–6250
139
14–17
VL 6251–6500
140
17–21
VL 6501–6750
141
21–24
VL 6751–7000
142
24–27
VL 7000–7250
143
27 Feb–1 Mar
VL 7251–7500
March
144
1–6
VL 7501–7750
145
VL 7751–8000
146
VL 8001–8250
147
VL 8251–8500
148
15–18
VL 8501–8750
149
18–21
VL 8751–9000
150
VL 9001–9250
151
VL 9251–9500
152
27–29
VL 9501–9750
765
29 Mar–1 Apr
VL 9751–9999
April
35
KV 1–250
36
KV 251–500
37
8–11
KV 501–750
38
11–14
KV 751–1000
39
KV 1001–1250
40
17–20
KV 1251–1500
41
20–23
KV 1501–1750
42
23–25
KV 1751–2000
43
KV 2001–2250
44
28 Apr–1 May
KV 2251–2500
May
45
1–3
KV 2501–2750
46
3–6
KV 2751–3000
47
6–9
KV 3001–3250
153
9–11
KV 3251–3500
154
11–13
KV 3501–3750
155
13–16
KV 3751–4000
156
16–17
KV 4001–4250
157
17–19
KV 4251–4500
158
19–21
KV 4501–4750
159
21–26
KV 4751–5000
160
24–26
KV 5001–5250
161
26–28
KV 5251–5500
162
28–30
KV 5501–5750
163
30 May–1 June
KV 5751–6000
June
164
1–3 June
KV 6001–6250
165
3–5 June
KV 6251–6500
166
5–7 June
KV 6501–6750
167
7–8 June
KV 6751–7000
168
8–10 June
KV 7001–7250
169
10–11 June
KV 7251–7500
170
11–12 June
KV 7501–7750
171
12–14 June
KV 7751–8000
172
14–15 June
KV 8001–8250
173
16–17 June
KV 8251–8500
174
17–19 June
KV 8501–8750
175
19–21 June
KV 8751–9000
176
21–23 June
KV 9001–9250
177
23–25 June
KV 9251–9500
178
25–27 June
KV 9501–9750
179
27–28 June
KV 9751–9500
48
29–30 June
XL 1–XL250
49
30 June–2 july
XL 251–500
continued on next page …
PART ONE OF THREE
Notes:
(a) Messages are arranged in series of 9999, each prefixed by two letters (e.g. HP 1–HP 9999)
(b) Each file contains 250 messages, usually arranged from the highest numbered first to the lowest last.
