NumberResearchRecent thousands-block assignments
3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2008-10-06 | 939-253-2XXX | 2000–2999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-3XXX | 3000–3999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-4XXX | 4000–4999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-5XXX | 5000–5999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-6XXX | 6000–6999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-7XXX | 7000–7999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-8XXX | 8000–8999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-10-06 | 939-253-9XXX | 9000–9999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2008-09-15 | 939-252-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2008-03-18 | 939-225-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | BAYAMONSUR | PR |
| 2007-10-24 | 939-245-0XXX | 0000–0999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-1XXX | 1000–1999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-2XXX | 2000–2999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-3XXX | 3000–3999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-4XXX | 4000–4999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-5XXX | 5000–5999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-6XXX | 6000–6999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-7XXX | 7000–7999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-8XXX | 8000–8999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-245-9XXX | 9000–9999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-0XXX | 0000–0999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-1XXX | 1000–1999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-2XXX | 2000–2999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-3XXX | 3000–3999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-4XXX | 4000–4999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-5XXX | 5000–5999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-6XXX | 6000–6999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-7XXX | 7000–7999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-8XXX | 8000–8999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-246-9XXX | 9000–9999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-0XXX | 0000–0999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-1XXX | 1000–1999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-2XXX | 2000–2999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-3XXX | 3000–3999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-4XXX | 4000–4999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-5XXX | 5000–5999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-6XXX | 6000–6999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-7XXX | 7000–7999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-8XXX | 8000–8999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-247-9XXX | 9000–9999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-0XXX | 0000–0999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-1XXX | 1000–1999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-2XXX | 2000–2999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-3XXX | 3000–3999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-4XXX | 4000–4999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-5XXX | 5000–5999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-6XXX | 6000–6999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-7XXX | 7000–7999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-8XXX | 8000–8999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2007-10-24 | 939-248-9XXX | 9000–9999 | Assigned | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.