NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 787
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-04-19 | 787-907-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-18 | 787-395-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2011-04-18 | 787-395-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2011-04-18 | 787-395-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-395-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-666-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-666-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-666-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-666-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-666-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-906-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | BAYAMONNOR | PR |
| 2011-04-18 | 787-966-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2011-03-22 | 787-624-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2011-03-22 | 787-624-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2011-03-22 | 787-679-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-03-22 | 787-679-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-03-22 | 787-679-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-03-22 | 787-679-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-03-22 | 787-705-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-01-10 | 787-600-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-01-10 | 787-600-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-01-10 | 787-600-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-01-10 | 787-679-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2010-11-18 | 787-972-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-972-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-972-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-972-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-983-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-983-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-11-18 | 787-983-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-920-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-938-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-938-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-938-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-938-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2010-10-26 | 787-938-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.