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 |
|---|---|---|---|---|---|---|---|
| 2017-08-14 | 939-291-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | QUEBRADLLS | PR |
| 2017-07-26 | 939-438-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-07-26 | 939-438-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-07-21 | 939-422-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2017-07-21 | 939-422-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2017-07-21 | 939-422-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2017-07-21 | 939-422-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2017-06-12 | 939-213-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2017-06-12 | 939-213-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2017-06-12 | 939-213-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2017-06-12 | 939-213-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2017-05-16 | 939-234-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 8305 | CANOVANAS | PR |
| 2017-05-16 | 939-715-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CAGUAS | PR |
| 2017-04-19 | 939-945-8XXX | 8000–8999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | SANTURCEES | PR |
| 2017-04-11 | 939-357-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CABO ROJO | PR |
| 2017-04-10 | 939-345-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | MOROVIS | PR |
| 2017-04-10 | 939-438-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-04-10 | 939-438-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-04-10 | 939-438-4XXX | 4000–4999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-04-10 | 939-438-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-04-10 | 939-438-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2017-04-10 | 939-465-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | NAGUABO | PR |
| 2017-04-06 | 939-687-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | GURABO | PR |
| 2017-03-15 | 939-428-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2017-03-09 | 939-397-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2017-03-09 | 939-475-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2016-12-09 | 939-438-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2016-12-09 | 939-438-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2016-12-09 | 939-438-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2016-12-07 | 939-235-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2016-12-07 | 939-484-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2016-12-07 | 939-484-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2016-11-04 | 939-814-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | UTUADO | PR |
| 2016-10-31 | 939-333-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | PUEBLOVIEJ | PR |
| 2016-10-31 | 939-440-4XXX | 4000–4999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | FLORIDA | PR |
| 2016-10-21 | 939-355-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | BAYAMONNOR | PR |
| 2016-10-21 | 939-715-1XXX | 1000–1999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CAGUAS | PR |
| 2016-10-12 | 939-399-0XXX | 0000–0999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | RIOPIEDRAS | PR |
| 2016-10-10 | 939-633-3XXX | 3000–3999 | Assigned | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | CAROLINA | PR |
| 2016-10-04 | 939-231-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2016-10-04 | 939-231-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2016-10-04 | 939-299-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MAYAGUEZ | PR |
| 2016-10-04 | 939-299-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MAYAGUEZ | PR |
| 2016-10-04 | 939-459-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2016-10-04 | 939-459-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANATI | PR |
| 2016-08-30 | 939-231-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2016-08-30 | 939-231-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2016-08-23 | 939-439-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2016-08-23 | 939-439-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR |
| 2016-08-23 | 939-439-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | 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.