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 |
|---|---|---|---|---|---|---|---|
| 2015-05-29 | 939-529-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2015-05-29 | 939-529-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2015-05-29 | 939-529-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FAJARDO | PR |
| 2015-05-26 | 939-319-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2015-05-11 | 939-292-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR |
| 2015-04-21 | 939-215-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2015-03-26 | 939-319-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | AGUADILLA | PR |
| 2015-03-26 | 939-319-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | AGUADILLA | PR |
| 2015-03-13 | 939-492-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | RIO GRANDE | PR |
| 2015-03-06 | 939-335-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | ARROYO | PR |
| 2015-03-03 | 939-297-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2015-02-09 | 939-227-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2015-02-09 | 939-227-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2015-02-09 | 939-227-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2015-02-09 | 939-227-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2015-02-04 | 939-459-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MANATI | PR |
| 2014-12-15 | 939-488-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONNOR | PR |
| 2014-12-15 | 939-488-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONNOR | PR |
| 2014-12-15 | 939-488-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONNOR | PR |
| 2014-12-04 | 939-492-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2014-12-01 | 939-228-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2014-12-01 | 939-500-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PONCE | PR |
| 2014-12-01 | 939-500-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | PONCE | PR |
| 2014-12-01 | 939-500-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | PONCE | PR |
| 2014-11-20 | 939-585-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2014-11-17 | 939-239-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2014-11-17 | 939-239-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2014-11-17 | 939-239-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2014-11-17 | 939-239-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR |
| 2014-11-12 | 939-239-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CAGUAS | PR |
| 2014-11-11 | 939-881-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2014-11-11 | 939-881-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2014-11-11 | 939-881-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2014-11-06 | 939-865-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MAYAGUEZ | PR |
| 2014-11-05 | 939-322-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-10-29 | 939-439-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-10-13 | 939-226-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-10-13 | 939-227-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR |
| 2014-10-07 | 939-539-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2014-10-07 | 939-539-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2014-10-07 | 939-539-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR |
| 2014-09-26 | 939-599-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-09-18 | 939-319-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2014-09-16 | 939-238-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2014-09-16 | 939-238-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2014-09-15 | 939-322-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-09-15 | 939-322-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-09-15 | 939-322-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2014-09-02 | 939-336-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CANOVANAS | PR |
| 2014-09-02 | 939-336-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CANOVANAS | 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.