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 |
|---|---|---|---|---|---|---|---|
| 2008-07-11 | 787-480-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | BAYAMONNOR | PR |
| 2008-07-11 | 787-992-3XXX | 3000–3999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | YAUCO | PR |
| 2008-06-24 | 787-679-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2008-05-28 | 787-673-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2008-05-13 | 787-483-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | NARANJITO | PR |
| 2008-05-08 | 787-680-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | ARECIBO | PR |
| 2008-05-08 | 787-921-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | MANATI | PR |
| 2008-05-05 | 787-592-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | GUAYAMA | PR |
| 2008-05-05 | 787-966-8XXX | 8000–8999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | BAYAMONNOR | PR |
| 2008-05-05 | 787-995-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | BAYAMONNOR | PR |
| 2008-05-01 | 787-900-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-05-01 | 787-900-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-04-04 | 787-932-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2008-03-25 | 787-694-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | CAYEY | PR |
| 2008-03-25 | 787-986-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | MAYAGUEZ | PR |
| 2008-03-25 | 787-987-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | PONCE | PR |
| 2008-03-18 | 787-710-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2008-03-18 | 787-908-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2008-03-17 | 787-230-4XXX | 4000–4999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | TOA BAJA | PR |
| 2008-03-17 | 787-230-5XXX | 5000–5999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | TOA BAJA | PR |
| 2008-03-12 | 787-965-7XXX | 7000–7999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | VEGA BAJA | PR |
| 2008-03-11 | 787-500-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | RIO GRANDE | PR |
| 2008-03-10 | 787-476-7XXX | 7000–7999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | SAN GERMAN | PR |
| 2008-03-10 | 787-500-7XXX | 7000–7999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | RIO GRANDE | PR |
| 2008-03-10 | 787-973-7XXX | 7000–7999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | GUAYANILLA | PR |
| 2008-02-25 | 787-718-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-02-25 | 787-718-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-02-25 | 787-718-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-02-25 | 787-718-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-02-25 | 787-718-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2008-02-07 | 787-931-9XXX | 9000–9999 | Assigned | PUERTO RICO TELEPHONE COMPANY, INC. | 667C | AGUADILLA | PR |
| 2008-01-28 | 787-341-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARROYO | PR |
| 2008-01-28 | 787-629-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2008-01-17 | 787-673-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2008-01-17 | 787-673-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2008-01-02 | 787-678-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2007-12-21 | 787-689-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2007-12-21 | 787-689-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2007-12-21 | 787-689-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2007-12-21 | 787-689-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2007-11-27 | 787-708-6XXX | 6000–6999 | Assigned | WORLDNET TELECOMMUNICATIONS, INC. - PR | 9726 | GUAYNABO | PR |
| 2007-11-21 | 787-629-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2007-11-21 | 787-988-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2007-10-16 | 787-946-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-3XXX | 3000–3999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-4XXX | 4000–4999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-5XXX | 5000–5999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-7XXX | 7000–7999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCE | PR |
| 2007-10-16 | 787-946-8XXX | 8000–8999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | 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.