Differences

This shows you the differences between two versions of the page.

--- uk-callsigns [2026/07/05 11:53] – g3aka
+++ uk-callsigns [2026/07/11 20:56] (current) – [Ofcom Licence Database] g3aka
@@ Line 2: / Line 2: @@
 These prefixes are used for UK and Crown Dependency (CD) amateur radio call signs, unless otherwise stated suffixes may be one, two or three characters in length:
-  * Foundation M3, M6, M7 + three character suffix
+  * Foundation (Individual) M3, M6, M7 + three character suffix
-  * Intermediate 2#0, 2#1, M8, M9 + three letter suffix, two letter suffix 2#0/2#1 calls were issued in 2018-19
+  * Intermediate (Individual) 2#0, 2#1, M8, M9 + three letter suffix, two letter suffix 2#0/2#1 calls were issued in 2018-19
-  * Full  G0, G1, G2, G3, G4, G5, G6, G7, G8, M0, M1, M5 + three letter suffix, two letter suffix calls issued prior to 2020
+  * Full (Individual, Club or Temporary Reciprocal) G0, G1, G2, G3, G4, G5, G6, G7, G8, M0, M1, M5 + three letter suffix. Two letter suffix calls were issued prior to 2020 but aren't currently issued
   * Short Contest Call sign with single character suffix, format Gnx or Mnx where n=0-9 and x=A-Z
   * Special Event Station MB5 issued in 2015 now format is GBnccccl, MBn where n=numeral (0-9), c=character (a-z,0-9 or null), l=letter. Suffix may be 1-4 characters or no suffix at all e.g. GB50 issued in 2002
@@ Line 20: / Line 20: @@
 Call signs that may be available for issue include all valid format individual callsigns that **don't appear** in the [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Ofcom Callsign Spreadsheet]] and whose suffix doesn't appear in the Forbidden Suffixes Spreadsheet [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Forbidden Suffixes Spreadsheet]].
-In addition all those callsigns that have been in the Reserved state for more than 5 years as indicated by the Last Modified Date field in [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Ofcom's callsign spreadsheet]] (A blank date field also means it's more than 5 years old). **are Available for issue**.  To get one of these Reserved callsigns amateurs may need to ring Ofcom and ask them to change the status to available, they can do this almost instantly.
+In addition all those callsigns that have been in the **Reserved** state for more than 5 years as indicated by the Last Modified Date field in [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Ofcom's callsign spreadsheet]] (A blank date field also means it's more than 5 years old). **are Available for issue**.  To get one of these Reserved callsigns you may need to ring Ofcom and ask them to change the status to available, they can do this almost instantly.
 Ofcom Spectrum Licensing Tel: 0300 123 1000  -  [[https://x.com/ofcom|Ofcom are also on X]]
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 The spreadsheet shows Individual, Club and Temporary Reciprocal licence call signs that are either Allocated or Reserved along with a few call signs marked as Available but any call sign that **does not** appear in the spreadsheet (or in Forbidden) is also Available.
-None of the callsigns are shown with an RSL so 2E0ABC would appear as 20ABC but Ofcom has been transitioning "2" prefix callsigns to M8 or M9 prefixes and Ofcom will no longer issue any "2" prefix callsign.  When viewed in Excel a few spreadsheet rows may display a **date** instead of the call sign, the result of a formatting issue, 20JAN appears as 20-Jan, 21DEC as 21-Dec.
+None of the callsigns are shown with an RSL so 2E0ABC would appear as 20ABC but Ofcom has been transitioning "2" prefix callsigns to M8 or M9 prefixes and Ofcom will no longer issue any "2" prefix callsign.
-Note the Foundation M3 call series shows thousands of callsigns with Reserved status despite having been in that state for well over the required 5 years.   They are in fact Available for issue but those who've passed their Foundation exam will need to ring Ofcom, or use Ofcom's Online Chat facility, to ask them to change the status to Available which Ofcom can do almost instantly for you.
+**Note:** When Ofcom's Open Data .CSV spreadsheets are viewed in Excel a few spreadsheet rows may display a **date** instead of the call sign, the result of an Excel formatting issue it only appears to affect the legacy 2 series call signs - 20JAN appears as 20-Jan, 21DEC as 21-Dec.
+**Note:** The Foundation M3 call series shows thousands of callsigns with Reserved status despite having been in that state for well over the required 5 years.   They are in fact Available for issue but those who've passed their Foundation exam will need to ring Ofcom Spectrum Licensing (0300 123 1000) to ask them to change the status to Available which Ofcom can do almost instantly for you.
 The spreadsheet released in June 2026 included the missing "Z" callsigns although it's known a valid licence callsign M7FMI is still missing. This was believed to be because Ofcom had used an incorrect record Type field of blank instead of "Call sign - Amateur" in the main licence database as a result M7FMI isn't extracted to the spreadsheet.   This spreadsheet shows almost 106,000 Allocated call signs for Individual, Club and Temporary Reciprocal licences: