NumberResearchRecent thousands-block assignments
6 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 901
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 |
|---|---|---|---|---|---|---|---|
| 2006-07-26 | 901-746-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2006-07-12 | 901-290-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ARLINGTON | TN |
| 2006-07-12 | 901-620-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | TN |
| 2006-07-12 | 901-620-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | TN |
| 2006-07-12 | 901-620-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | TN |
| 2006-07-10 | 901-201-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2006-06-23 | 901-313-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COVINGTON | TN |
| 2006-06-20 | 901-361-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-20 | 901-361-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-20 | 901-361-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-20 | 901-361-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-06 | 901-255-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-05 | 901-201-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2006-06-01 | 901-205-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-205-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-205-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-205-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-205-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-215-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-215-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-215-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-06-01 | 901-215-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-05-24 | 901-596-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2006-05-24 | 901-679-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2006-05-24 | 901-679-2XXX | 2000–2999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2006-05-17 | 901-221-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | COLLIERVL | TN |
| 2006-05-16 | 901-201-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2006-05-16 | 901-201-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2006-05-16 | 901-201-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2006-05-16 | 901-209-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MOSCOW | TN |
| 2006-05-16 | 901-457-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | COLLIERVL | TN |
| 2006-05-10 | 901-209-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MOSCOW | TN |
| 2006-05-03 | 901-574-7XXX | 7000–7999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2006-05-03 | 901-574-8XXX | 8000–8999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2006-05-03 | 901-574-9XXX | 9000–9999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2006-04-24 | 901-651-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | COLLIERVL | TN |
| 2006-04-12 | 901-221-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COLLIERVL | TN |
| 2006-03-31 | 901-466-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SOMERVILLE | TN |
| 2006-03-28 | 901-622-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | COVINGTON | TN |
| 2006-03-22 | 901-248-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | TN |
| 2006-03-21 | 901-415-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2006-03-21 | 901-415-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2006-03-21 | 901-515-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2006-03-21 | 901-515-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2006-03-14 | 901-215-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2006-03-13 | 901-622-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COVINGTON | TN |
| 2006-03-01 | 901-201-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-03-01 | 901-201-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-03-01 | 901-282-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2006-03-01 | 901-435-9XXX | 9000–9999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
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.