This is also known as the AH2O rule ;)
J.P. W2XX
> On Feb 2, 2026, at 8:41 AM, John Geiger via CQ-Contest
> <cq-contest@contesting.com> wrote:
>
> Thanks for bringing that up John. I have the same question.
>
> 73 John AF5CC
>
> Sent from Proton Mail Android
>
>
> -------- Original Message --------
>> On 2/2/26 6:36 AM, <john@kk9a.com> wrote:
>>
>> What does "DXCC entity is now determined by the license rather than the
>> callsign" mean? The prefix definition appears to be what it has always have
>> been:
>>
>> 1. A PREFIX is the letter/numeral combination which forms the first part of
>> the amateur call. Examples: N8, W8, WD8, HG1, HG19, KC2, OE2, OE25, LY1000,
>> etc. Any difference in the numbering, lettering, or order of same shall
>> count as a separate prefix. A station operating from a DXCC entity different
>> from that shown on its license is required to sign portable. The portable
>> prefix must be an authorized prefix of the country/call area of operation.
>> In cases of portable operation, the portable designator will then become the
>> prefix. Example: N8BJQ, licensed in the U.S., operating from Wake Island
>> would sign N8BJQ/KH9 or N8BJQ/NH9. KH6XXX, licensed in Hawaii, operating
>> from Ohio must use an authorized prefix for the U.S. 8th district (/W8,
>> /AD8, etc.). Portable designators without numbers will be assigned a zero
>> (0) after the second letter of the portable designator to form the prefix.
>> Example: PA/N8BJQ would become PA0. All calls without numbers will be
>> assigned a zero (0) after the first two letters to form the prefix. Example:
>> XEFTJW would count as XE0. Maritime mobile, mobile, /A, /E, /J, /P, or other
>> license class identifiers do not count as prefixes.
>>
>>
>> John KK9A
>>
>>
>>
>>
>> W0YK wrote:
>>
>> The WPX season kicks off in two weeks with the RTTY mode. Please review the
>> 2026 WPX RTTY Rules <https://cqwpxrtty.com/rules.htm> and pay particular
>> attention to the following changes:
>>
>>
>> 1. DXCC entity is now determined by the license rather than the call
>> sign. (V. SCORING/C. Prefix Multipliers/1.) <snip>
>>
>>
>> 1. A PREFIX is the letter/numeral combination which forms the first part of
>> the amateur call. Examples: N8, W8, WD8, HG1, HG19, KC2, OE2, OE25, LY1000,
>> etc. Any difference in the numbering, lettering, or order of same shall
>> count as a separate prefix. A station operating from a DXCC entity different
>> from that shown on its license is required to sign portable. The portable
>> prefix must be an authorized prefix of the country/call area of operation.
>> In cases of portable operation, the portable designator will then become the
>> prefix. Example: N8BJQ, licensed in the U.S., operating from Wake Island
>> would sign N8BJQ/KH9 or N8BJQ/NH9. KH6XXX, licensed in Hawaii, operating
>> from Ohio must use an authorized prefix for the U.S. 8th district (/W8,
>> /AD8, etc.). Portable designators without numbers will be assigned a zero
>> (0) after the second letter of the portable designator to form the prefix.
>> Example: PA/N8BJQ would become PA0. All calls without numbers will be
>> assigned a zero (0) after the first two letters to form the prefix. Example:
>> XEFTJW would count as XE0. Maritime mobile, mobile, /A, /E, /J, /P, or other
>> license class identifiers do not count as prefixes.
>>
>>
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>>
>
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