NumberResearchRecent thousands-block assignments
3 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, last 30 days — NPA 939
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-06-03 | 939-998-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RINCON | PR |
| 2025-05-30 | 939-431-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2025-05-30 | 939-473-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2025-05-20 | 939-431-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2025-05-15 | 939-433-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2025-05-09 | 939-431-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2025-05-09 | 939-473-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2025-04-14 | 939-396-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CAROLINA | PR |
| 2025-04-14 | 939-938-8XXX | 8000–8999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | ISLA VERDE | PR |
| 2025-04-14 | 939-998-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | RINCON | PR |
| 2025-04-03 | 939-433-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2025-03-25 | 939-398-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2025-03-25 | 939-398-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2025-03-25 | 939-473-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2025-03-25 | 939-473-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2025-03-25 | 939-699-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RINCON | PR |
| 2025-03-12 | 939-421-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2025-02-12 | 939-435-8XXX | 8000–8999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | BARRANQUTS | PR |
| 2025-02-03 | 939-709-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 8305 | RIOPIEDRAS | PR |
| 2025-01-29 | 939-221-7XXX | 7000–7999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | LUQUILLO | PR |
| 2025-01-29 | 939-345-8XXX | 8000–8999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | MOROVIS | PR |
| 2025-01-29 | 939-544-6XXX | 6000–6999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | CAMUY | PR |
| 2025-01-29 | 939-814-3XXX | 3000–3999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | UTUADO | PR |
| 2024-12-17 | 939-398-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-12-17 | 939-398-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-12-17 | 939-421-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-12-17 | 939-471-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-12-17 | 939-471-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-12-17 | 939-471-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-12-17 | 939-471-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-12-17 | 939-473-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2024-12-17 | 939-473-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2024-11-07 | 939-398-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-11-07 | 939-398-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-11-07 | 939-421-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-11-07 | 939-426-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-11-07 | 939-426-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-11-07 | 939-915-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2024-10-21 | 939-230-9XXX | 9000–9999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | ANASCO | PR |
| 2024-10-21 | 939-329-4XXX | 4000–4999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | MAUNABO | PR |
| 2024-10-21 | 939-357-7XXX | 7000–7999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CABO ROJO | PR |
| 2024-10-21 | 939-779-9XXX | 9000–9999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | VILLALBA | PR |
| 2024-10-17 | 939-221-9XXX | 9000–9999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | LUQUILLO | PR |
| 2024-10-17 | 939-309-9XXX | 9000–9999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | GUAYAMA | PR |
| 2024-10-17 | 939-430-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | AGUADILLA | PR |
| 2024-10-17 | 939-465-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | NAGUABO | PR |
| 2024-10-17 | 939-928-8XXX | 8000–8999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | PENUELAS | PR |
| 2024-10-17 | 939-935-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | HORMIGUERO | PR |
| 2024-10-08 | 939-348-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANTURCEES | PR |
| 2024-10-08 | 939-348-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANTURCEES | 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.