NumberResearchRecent thousands-block assignments
11 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 401
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 |
|---|---|---|---|---|---|---|---|
| 2003-06-10 | 401-243-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-03 | 401-714-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-06-02 | 401-365-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PAWTUCKET | RI |
| 2003-05-27 | 401-226-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-05-19 | 401-475-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PAWTUCKET | RI |
| 2003-05-12 | 401-473-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2003-05-12 | 401-473-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2003-05-12 | 401-473-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2003-05-12 | 401-473-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2003-05-08 | 401-615-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | W WARWICK | RI |
| 2003-05-05 | 401-714-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-05-05 | 401-829-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-05-05 | 401-829-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-05-05 | 401-829-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-05-05 | 401-829-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-05-05 | 401-829-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-30 | 401-921-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WARWICK | RI |
| 2003-04-24 | 401-263-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-04-24 | 401-595-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-24 | 401-829-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-24 | 401-829-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-24 | 401-829-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-24 | 401-829-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2003-04-03 | 401-263-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-04-03 | 401-398-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | GREENWICH | RI |
| 2003-03-18 | 401-228-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-18 | 401-228-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-07 | 401-226-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-07 | 401-226-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-07 | 401-226-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-07 | 401-226-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-03-05 | 401-367-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | NEWPORT | RI |
| 2003-03-05 | 401-491-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | HOPEVALLEY | RI |
| 2003-02-03 | 401-315-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WESTERLY | RI |
| 2003-01-24 | 401-229-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WOONSOCKET | RI |
| 2003-01-24 | 401-262-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | W WARWICK | RI |
| 2003-01-24 | 401-312-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | PAWTUCKET | RI |
| 2003-01-24 | 401-352-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WARWICK | RI |
| 2003-01-17 | 401-226-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-01-17 | 401-226-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-01-17 | 401-226-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2003-01-09 | 401-595-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2002-10-31 | 401-595-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2002-10-31 | 401-595-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2002-10-31 | 401-595-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
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.