NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2005-03-08 | 505-419 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AZTEC | NM |
| 2004-11-18 | 505-205 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2003-10-24 | 505-947 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| 2002-11-20 | 505-793 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| 2002-09-17 | 505-705 | 1XXX3XXX6XXX8XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2002-09-05 | 505-617 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LAS VEGAS | NM |
| 2001-12-18 | 505-712 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2001-12-18 | 505-818 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2001-10-12 | 505-804 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2001-10-12 | 505-907 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2001-09-21 | 505-215 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| 2001-08-15 | 505-400 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| 2001-04-17 | 505-603 | 3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA FE | NM |
| 2001-04-16 | 505-304 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-203 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-204 | 6XXX7XXX8XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA FE | NM |
| — | 505-261 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-301 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-315 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-316 | 7XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA FE | NM |
| — | 505-319 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-320 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| — | 505-330 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| — | 505-486 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| — | 505-489 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALBUQURQUE | NM |
| — | 505-929 | 5XXX6XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ESPANOLA | NM |
| — | 505-979 | 5XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GALLUP | NM |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.