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 |
|---|---|---|---|---|---|---|
| 2021-08-11 | 912-597 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | AL-CALL, INC. - GA | 3622 | ALAMO | GA |
| 2015-09-15 | 912-522 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | ST MARYS | GA |
| 2010-11-11 | 912-524 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | LYONS | GA |
| 2002-06-25 | 912-263 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | BRUNSWICK | GA |
| 2002-06-25 | 912-535 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | VIDALIA | GA |
| 2002-06-17 | 912-252 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | SAVANNAH | GA |
| 2001-09-21 | 912-720 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | DOUGLAS | GA |
| 2001-09-04 | 912-699 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | HAZLEHURST | GA |
| 2001-09-04 | 912-705 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | BAXLEY | GA |
| 2001-09-04 | 912-810 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | JESUP | GA |
| 2001-07-30 | 912-490 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | WAYCROSS | GA |
| 2001-06-26 | 912-807 | not yet reported which blocks → | AL-CALL, INC. - GA | 3622 | BLACKSHEAR | GA |
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.