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 |
|---|---|---|---|---|---|---|---|
| 2012-11-16 | 787-940-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2012-11-16 | 787-940-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2012-11-16 | 787-940-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2012-11-13 | 787-980-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2012-10-16 | 787-710-8XXX | 8000–8999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | CAROLINA | PR |
| 2012-10-12 | 787-987-7XXX | 7000–7999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | PONCE | PR |
| 2012-07-12 | 787-981-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2012-07-12 | 787-981-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2012-07-12 | 787-981-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2012-07-12 | 787-981-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2012-04-26 | 787-222-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2012-04-26 | 787-513-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2012-03-09 | 787-664-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2012-03-09 | 787-664-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2012-03-09 | 787-664-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2012-02-21 | 787-773-1XXX | 1000–1999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | RIOPIEDRAS | PR |
| 2012-02-14 | 787-628-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR |
| 2012-02-14 | 787-631-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR |
| 2011-11-16 | 787-980-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2011-11-16 | 787-980-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2011-11-16 | 787-980-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2011-11-16 | 787-980-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2011-11-15 | 787-981-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-15 | 787-981-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-15 | 787-981-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-15 | 787-981-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-15 | 787-981-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-15 | 787-981-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-11-10 | 787-624-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2011-11-10 | 787-624-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2011-11-02 | 787-900-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2011-10-13 | 787-664-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-10-13 | 787-664-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-10-13 | 787-664-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-10-13 | 787-664-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-10-13 | 787-664-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2011-04-28 | 787-710-9XXX | 9000–9999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | CAROLINA | PR |
| 2011-04-19 | 787-905-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-905-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-905-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-905-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-905-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-905-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2011-04-19 | 787-907-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | 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.