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 |
|---|---|---|---|---|---|---|---|
| 2004-07-27 | 787-929-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARROYO | PR |
| 2004-07-21 | 787-463-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2004-07-14 | 787-359-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2004-07-14 | 787-359-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2004-07-14 | 787-359-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2004-07-02 | 787-556-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | FAJARDO | PR |
| 2004-07-01 | 787-659-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2004-06-25 | 787-674-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2004-06-25 | 787-674-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2004-06-25 | 787-674-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2004-06-25 | 787-674-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2004-06-16 | 787-668-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2004-06-16 | 787-676-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2004-06-15 | 787-546-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2004-06-15 | 787-546-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2004-06-15 | 787-546-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2004-06-03 | 787-595-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2004-06-03 | 787-595-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2004-06-03 | 787-595-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2004-06-02 | 787-346-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2004-06-02 | 787-346-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2004-06-02 | 787-346-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2004-06-01 | 787-546-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | AGUADILLA | PR |
| 2004-06-01 | 787-546-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | AGUADILLA | PR |
| 2004-06-01 | 787-659-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | SAN GERMAN | PR |
| 2004-05-25 | 787-585-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2004-05-25 | 787-585-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2004-05-18 | 787-585-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2004-05-18 | 787-585-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2004-05-18 | 787-601-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2004-05-18 | 787-601-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2004-05-18 | 787-601-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2004-05-12 | 787-221-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2004-05-12 | 787-221-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2004-05-12 | 787-549-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | MANATI | PR |
| 2004-05-12 | 787-556-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | FAJARDO | PR |
| 2004-05-12 | 787-556-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | FAJARDO | PR |
| 2004-05-07 | 787-463-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2004-04-28 | 787-223-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | GUAYNABO | PR |
| 2004-04-28 | 787-223-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | GUAYNABO | PR |
| 2004-04-28 | 787-224-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2004-04-28 | 787-224-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2004-04-28 | 787-675-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2004-04-28 | 787-675-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2004-04-22 | 787-220-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2004-04-22 | 787-220-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2004-04-22 | 787-220-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2004-04-22 | 787-806-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | MAYAGUEZ | PR |
| 2004-04-21 | 787-459-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2004-04-21 | 787-459-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | 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.