District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| NA4HK | 10 | 49 | — | — | Available |
| NA4HL | 10 | 49 | 2000-07-11 | 2002-07-12 | Available |
| NA4HM | 9 | 47 | — | — | Available |
| NA4HN | 11 | 45 | — | — | Available |
| NA4HO | 10 | 51 | — | — | Available |
| NA4HP | 10 | 51 | — | — | Available |
| NA4HQ | 10 | 53 | — | — | Available |
| NA4HR | 11 | 47 | — | — | Available |
| NA4HS | 11 | 45 | — | — | Available |
| NA4HT | 10 | 43 | — | — | Available |
| NA4HU | 11 | 47 | — | — | Available |
| NA4HV | 10 | 49 | — | — | Available |
| NA4HW | 10 | 49 | — | — | Available |
| NA4HX | 10 | 51 | — | — | Available |
| NA4HY | 10 | 53 | — | — | Available |
| NA4HZ | 10 | 51 | — | — | Available |
| NA4IA | 11 | 41 | — | — | Available |
| NA4IB | 11 | 45 | — | — | Available |
| NA4IC | 11 | 47 | — | — | Available |
| NA4ID | 11 | 43 | — | — | Available |
| NA4IE | 11 | 37 | 2028-04-06 | — | Active (Vanity) |
| NA4IF | 11 | 45 | — | — | Available |
| NA4IG | 10 | 45 | — | — | Available |
| NA4IH | 11 | 43 | — | — | Available |
| NA4II | 12 | 39 | — | — | Available |
| NA4IJ | 12 | 49 | — | — | Available |
| NA4IK | 11 | 45 | — | — | Available |
| NA4IL | 11 | 45 | — | — | Available |
| NA4IM | 10 | 43 | — | — | Available |
| NA4IN | 12 | 41 | — | — | Available |
| NA4IO | 11 | 47 | — | — | Available |
| NA4IP | 11 | 47 | — | — | Available |
| NA4IQ | 11 | 49 | — | — | Available |
| NA4IR | 12 | 43 | — | — | Available |
| NA4IS | 12 | 41 | — | — | Available |
| NA4IT | 11 | 39 | 2032-08-02 | — | Active (Vanity) |
| NA4IU | 12 | 43 | — | — | Available |
| NA4IV | 11 | 45 | — | — | Available |
| NA4IW | 11 | 45 | — | — | Available |
| NA4IX | 11 | 47 | — | — | Available |
| NA4IY | 11 | 49 | — | — | Available |
| NA4IZ | 11 | 47 | — | — | Available |
| NA4JA | 11 | 51 | — | — | Available |
| NA4JB | 11 | 55 | 2030-04-04 | — | Active (Vanity) |
| NA4JC | 11 | 57 | — | — | Available |
| NA4JD | 11 | 53 | — | — | Available |
| NA4JE | 11 | 47 | — | — | Available |
| NA4JF | 11 | 55 | — | — | Available |
| NA4JG | 10 | 55 | — | — | Available |
| NA4JH | 11 | 53 | — | — | Available |
| NA4JI | 12 | 49 | — | — | Available |
| NA4JJ | 12 | 59 | — | — | Available |
| NA4JK | 11 | 55 | — | — | Available |
| NA4JL | 11 | 55 | — | — | Available |
| NA4JM | 10 | 53 | — | — | Available |
| NA4JN | 12 | 51 | — | — | Available |
| NA4JO | 11 | 57 | — | — | Available |
| NA4JP | 11 | 57 | 2026-10-07 | — | Active (Vanity) |
| NA4JQ | 11 | 59 | — | — | Available |
| NA4JR | 12 | 53 | — | — | Available |
| NA4JS | 12 | 51 | — | — | Available |
| NA4JT | 11 | 49 | — | — | Available |
| NA4JU | 12 | 53 | — | — | Available |
| NA4JV | 11 | 55 | — | — | Available |
| NA4JW | 11 | 55 | 2036-10-11 | — | Active (Vanity) |
| NA4JX | 11 | 57 | — | — | Available |
| NA4JY | 11 | 59 | — | — | Available |
| NA4JZ | 11 | 57 | — | — | Available |
| NA4KA | 10 | 47 | — | — | Available |
| NA4KB | 10 | 51 | — | — | Available |
| NA4KC | 10 | 53 | — | — | Available |
| NA4KD | 10 | 49 | — | — | Available |
| NA4KE | 10 | 43 | — | — | Available |
| NA4KF | 10 | 51 | — | — | Available |
| NA4KG | 9 | 51 | 2036-09-18 | — | Active (Vanity) |
| NA4KH | 10 | 49 | — | — | Available |
| NA4KI | 11 | 45 | — | — | Available |
| NA4KJ | 11 | 55 | — | — | Available |
| NA4KK | 10 | 51 | — | — | Available |
| NA4KL | 10 | 51 | — | — | Available |
| NA4KM | 9 | 49 | — | — | Available |
| NA4KN | 11 | 47 | — | — | Available |
| NA4KO | 10 | 53 | — | — | Available |
| NA4KP | 10 | 53 | — | — | Available |
| NA4KQ | 10 | 55 | — | — | Available |
| NA4KR | 11 | 49 | — | — | Available |
| NA4KS | 11 | 47 | — | — | Available |
| NA4KT | 10 | 45 | — | — | Available |
| NA4KU | 11 | 49 | — | — | Available |
| NA4KV | 10 | 51 | — | — | Available |
| NA4KW | 10 | 51 | — | — | Available |
| NA4KX | 10 | 53 | — | — | Available |
| NA4KY | 10 | 55 | — | — | Available |
| NA4KZ | 10 | 53 | — | — | Available |
| NA4LA | 10 | 47 | — | — | Available |
| NA4LB | 10 | 51 | 2031-04-12 | — | Active (Vanity) |
| NA4LC | 10 | 53 | 2025-02-04 | 2027-02-05 | Canceled (grace period) |
| NA4LD | 10 | 49 | — | — | Available |
| NA4LE | 10 | 43 | — | — | Available |
| NA4LF | 10 | 51 | — | — | Available |