NumberResearchRecent thousands-block assignments
67 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 479
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 |
|---|---|---|---|---|---|---|---|
| 2005-06-15 | 479-221-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| 2005-06-15 | 479-221-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| 2005-06-15 | 479-774-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLARKSVL | AR |
| 2005-04-18 | 479-599-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SILOAM SPG | AR |
| 2005-04-13 | 479-763-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FORT SMITH | AR |
| 2005-04-06 | 479-567-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RUSSELLVL | AR |
| 2005-03-25 | 479-220-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SILOAM SPG | AR |
| 2005-03-24 | 479-220-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SILOAM SPG | AR |
| 2005-03-24 | 479-445-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2005-03-24 | 479-445-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2005-03-24 | 479-445-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2005-03-24 | 479-445-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2005-03-24 | 479-445-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2005-03-03 | 479-426-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-03-03 | 479-426-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-03-03 | 479-426-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-03-03 | 479-426-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-03-03 | 479-426-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-03-03 | 479-426-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2005-02-25 | 479-419-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SPRINGDALE | AR |
| 2005-02-25 | 479-419-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SPRINGDALE | AR |
| 2005-02-02 | 479-250-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | BENTONVL | AR |
| 2005-01-24 | 479-431-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | FORT SMITH | AR |
| 2004-12-15 | 479-439-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | FAYETTEVL | AR |
| 2004-12-15 | 479-774-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLARKSVL | AR |
| 2004-12-03 | 479-696-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-12-03 | 479-696-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-28 | 479-696-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-18 | 479-586-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2004-10-18 | 479-586-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2004-10-18 | 479-586-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2004-10-18 | 479-586-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2004-10-13 | 479-258-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-10-13 | 479-258-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | BENTONVL | AR |
| 2004-08-24 | 479-567-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | RUSSELLVL | AR |
| 2004-08-04 | 479-234-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | MENA | AR |
| 2004-08-04 | 479-616-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | ROGERS | AR |
| 2004-07-30 | 479-409-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2004-07-30 | 479-409-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2004-07-30 | 479-409-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| 2004-05-03 | 479-659-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2004-05-03 | 479-659-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
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.