NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2009-06-19 | 787-702-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2009-06-19 | 787-702-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2009-06-12 | 787-906-0XXX | 0000–0999 | Assigned | OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR | 087D | BAYAMONNOR | PR |
| 2009-06-01 | 787-452-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2009-06-01 | 787-452-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2009-06-01 | 787-566-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2009-05-20 | 787-966-2XXX | 2000–2999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | BAYAMONNOR | PR |
| 2009-05-15 | 787-454-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2009-05-15 | 787-673-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2009-05-07 | 787-966-1XXX | 1000–1999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | BAYAMONNOR | PR |
| 2009-04-27 | 787-919-0XXX | 0000–0999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | SANTURCE | PR |
| 2009-01-08 | 787-341-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARROYO | PR |
| 2008-12-23 | 787-679-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | PUEBLOVIEJ | PR |
| 2008-11-21 | 787-359-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2008-11-18 | 787-718-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-11-18 | 787-718-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-11-18 | 787-718-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-11-18 | 787-718-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-11-09 | 787-709-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-11-09 | 787-709-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-11-08 | 787-710-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2008-11-07 | 787-666-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2008-11-07 | 787-666-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2008-11-07 | 787-666-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2008-11-07 | 787-666-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2008-11-04 | 787-513-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2008-11-04 | 787-513-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2008-11-04 | 787-513-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2008-11-04 | 787-513-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2008-10-29 | 787-452-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2008-10-29 | 787-452-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2008-10-29 | 787-629-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2008-10-29 | 787-678-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2008-10-29 | 787-678-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2008-10-29 | 787-678-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2008-10-29 | 787-678-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2008-10-29 | 787-904-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2008-10-29 | 787-904-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2008-10-29 | 787-974-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-29 | 787-974-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-29 | 787-974-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-29 | 787-974-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-29 | 787-974-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-29 | 787-974-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-21 | 787-709-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2008-10-21 | 787-800-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2008-10-21 | 787-800-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2008-10-21 | 787-800-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2008-10-21 | 787-800-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2008-10-21 | 787-800-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.