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 |
|---|---|---|---|---|---|---|---|
| 2025-10-28 | 787-668-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2025-10-02 | 787-476-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
| 2025-10-02 | 787-965-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | VEGA BAJA | PR |
| 2025-09-24 | 787-500-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2025-05-09 | 787-973-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2025-04-14 | 787-395-3XXX | 3000–3999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | BAYAMONNOR | PR |
| 2025-04-14 | 787-425-2XXX | 2000–2999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | GUAYNABO | PR |
| 2025-04-08 | 787-676-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2025-03-25 | 787-676-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-12-10 | 787-945-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANTURCEES | PR |
| 2024-12-10 | 787-982-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANTURCEES | PR |
| 2024-12-04 | 787-806-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | MAYAGUEZ | PR |
| 2024-11-07 | 787-961-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-10-21 | 787-271-7XXX | 7000–7999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | ARROYO | PR |
| 2024-10-21 | 787-558-6XXX | 6000–6999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SAN ISABEL | PR |
| 2024-10-21 | 787-719-9XXX | 9000–9999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | HUMACAO | PR |
| 2024-10-17 | 787-804-4XXX | 4000–4999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SABANAGRND | PR |
| 2024-09-19 | 787-676-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-19 | 787-676-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-30 | 787-500-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-30 | 787-676-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-17 | 787-719-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-17 | 787-719-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-17 | 787-719-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-06-12 | 787-468-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2024-06-11 | 787-468-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2024-06-11 | 787-500-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-06-11 | 787-500-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-06-11 | 787-500-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-06-11 | 787-676-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-06-11 | 787-676-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-06-11 | 787-676-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-06-10 | 787-931-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2024-03-14 | 787-345-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | VEGA BAJA | PR |
| 2024-03-14 | 787-566-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | ARECIBO | PR |
| 2024-03-14 | 787-680-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | ARECIBO | PR |
| 2024-03-14 | 787-987-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PONCE | PR |
| 2024-03-14 | 787-987-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PONCE | PR |
| 2024-03-14 | 787-987-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PONCE | PR |
| 2024-03-14 | 787-987-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PONCE | PR |
| 2024-03-13 | 787-401-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-13 | 787-401-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR |
| 2024-03-05 | 787-468-7XXX | 7000–7999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | FAJARDO | 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.