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 |
|---|---|---|---|---|---|---|---|
| 2005-01-17 | 901-881-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2005-01-10 | 901-239-4XXX | 4000–4999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2005-01-10 | 901-239-5XXX | 5000–5999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2005-01-10 | 901-239-6XXX | 6000–6999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-12-29 | 901-457-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COLLIERVL | TN |
| 2004-11-16 | 901-214-4XXX | 4000–4999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2004-11-16 | 901-214-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2004-11-16 | 901-214-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2004-11-16 | 901-214-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2004-11-10 | 901-692-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
| 2004-11-10 | 901-692-9XXX | 9000–9999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
| 2004-11-05 | 901-531-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
| 2004-10-21 | 901-209-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MOSCOW | TN |
| 2004-10-21 | 901-231-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WESTWHITEV | TN |
| 2004-10-21 | 901-290-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | ARLINGTON | TN |
| 2004-10-21 | 901-313-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COVINGTON | TN |
| 2004-10-21 | 901-466-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SOMERVILLE | TN |
| 2004-10-21 | 901-878-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | LAGRANGE | TN |
| 2004-10-15 | 901-239-1XXX | 1000–1999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-10-15 | 901-239-2XXX | 2000–2999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-10-15 | 901-239-3XXX | 3000–3999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-10-08 | 901-881-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2004-09-28 | 901-466-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SOMERVILLE | TN |
| 2004-09-28 | 901-786-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MEMPHIS | TN |
| 2004-09-15 | 901-238-0XXX | 0000–0999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-09-15 | 901-238-1XXX | 1000–1999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-09-02 | 901-515-9XXX | 9000–9999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
| 2004-08-27 | 901-881-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | MEMPHIS | TN |
| 2004-07-07 | 901-238-7XXX | 7000–7999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-06-22 | 901-239-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2004-06-22 | 901-239-9XXX | 9000–9999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2004-05-28 | 901-238-4XXX | 4000–4999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-05-28 | 901-238-5XXX | 5000–5999 | Assigned | CELLULAR SOUTH, INC. | 6581 | MEMPHIS | TN |
| 2004-05-19 | 901-507-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | MEMPHIS | TN |
| 2004-05-14 | 901-881-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2004-05-13 | 901-234-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-234-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLIERVL | TN |
| 2004-05-13 | 901-284-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TN |
| 2004-05-13 | 901-284-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TN |
| 2004-05-13 | 901-284-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TN |
| 2004-05-13 | 901-284-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TN |
| 2004-05-13 | 901-284-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | 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.