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 |
|---|---|---|---|---|---|---|---|
| 2022-08-24 | 939-344-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2022-08-08 | 939-356-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-08-08 | 939-356-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2022-06-22 | 939-600-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2022-06-22 | 939-600-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2022-06-22 | 939-739-2XXX | 2000–2999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | TOA ALTA | PR |
| 2022-06-10 | 939-385-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2022-06-10 | 939-385-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2022-05-27 | 939-333-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2022-05-27 | 939-333-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2022-05-26 | 939-324-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2022-05-26 | 939-324-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2022-05-19 | 939-371-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | CAROLINA | PR |
| 2022-05-18 | 939-316-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CAYEY | PR |
| 2022-05-18 | 939-324-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | NARANJITO | PR |
| 2022-05-18 | 939-385-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | TRUJILLOAL | PR |
| 2022-05-18 | 939-609-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | ISABELA | PR |
| 2022-05-18 | 939-699-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | RINCON | PR |
| 2022-05-18 | 939-915-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | VEGA ALTA | PR |
| 2022-05-11 | 939-342-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2022-05-11 | 939-342-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2022-05-03 | 939-739-4XXX | 4000–4999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | TOA ALTA | PR |
| 2022-03-01 | 939-377-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-03-01 | 939-377-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-03-01 | 939-377-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-28 | 939-362-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-28 | 939-362-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-28 | 939-362-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-28 | 939-362-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-28 | 939-362-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2022-02-23 | 939-341-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DORADO | PR |
| 2022-02-23 | 939-385-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2022-02-23 | 939-385-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2022-02-23 | 939-385-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR |
| 2022-02-16 | 939-348-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANTURCEES | PR |
| 2022-02-14 | 939-330-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-330-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-330-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-330-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-330-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-342-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2022-02-14 | 939-342-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | 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.