NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 505
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-09-09 | 505-297-2XXX | 2000–2999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | GALLUP | NM |
| 2011-04-01 | 505-501-6XXX | 6000–6999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | SANTA FE | NM |
| 2007-10-23 | 505-333-6XXX | 6000–6999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | AZTEC | NM |
| 2007-06-27 | 505-592-0XXX | 0000–0999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | FARMINGTON | NM |
| 2007-06-26 | 505-340-0XXX | 0000–0999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | ALBUQURQUE | NM |
| 2006-05-22 | 505-702-0XXX | 0000–0999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | ALBUQURQUE | NM |
| 2006-05-08 | 505-516-1XXX | 1000–1999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - NM | 868G | FARMINGTON | NM |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.