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 |
|---|---|---|---|---|---|---|---|
| 2005-09-12 | 401-427-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-09-06 | 401-385-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | COVENTRY | RI |
| 2005-09-06 | 401-597-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WOONSOCKET | RI |
| 2005-09-02 | 401-365-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | PAWTUCKET | RI |
| 2005-08-31 | 401-349-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | CENTREDALE | RI |
| 2005-08-29 | 401-450-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-08-26 | 401-305-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | PAWTUCKET | RI |
| 2005-08-26 | 401-305-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | PAWTUCKET | RI |
| 2005-08-19 | 401-229-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WOONSOCKET | RI |
| 2005-08-19 | 401-229-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WOONSOCKET | RI |
| 2005-08-12 | 401-315-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WESTERLY | RI |
| 2005-08-12 | 401-437-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PROVIDENCE | RI |
| 2005-08-10 | 401-244-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WARWICK | RI |
| 2005-08-10 | 401-352-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WARWICK | RI |
| 2005-08-02 | 401-371-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | PASCOAG | RI |
| 2005-08-02 | 401-622-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | WESTERLY | RI |
| 2005-08-02 | 401-685-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | TIVERTON | RI |
| 2005-08-02 | 401-685-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | TIVERTON | RI |
| 2005-07-27 | 401-305-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PAWTUCKET | RI |
| 2005-07-27 | 401-615-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | W WARWICK | RI |
| 2005-07-21 | 401-429-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-21 | 401-429-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-19 | 401-215-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-19 | 401-215-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-19 | 401-215-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-19 | 401-248-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-07-15 | 401-215-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-07-15 | 401-215-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-07-15 | 401-824-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-07-11 | 401-324-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | NEWPORT | RI |
| 2005-06-23 | 401-215-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-06-16 | 401-284-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | NARRAGNSTT | RI |
| 2005-06-07 | 401-525-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-06-07 | 401-525-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-06-07 | 401-525-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-06-07 | 401-824-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-06-07 | 401-824-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-05-27 | 401-249-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | COVENTRY | RI |
| 2005-05-27 | 401-257-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CUMBLND HL | RI |
| 2005-05-25 | 401-215-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PROVIDENCE | RI |
| 2005-05-17 | 401-289-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WARREN | RI |
| 2005-04-29 | 401-432-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | PROVIDENCE | RI |
| 2005-04-29 | 401-490-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | PROVIDENCE | RI |
| 2005-04-27 | 401-921-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WARWICK | RI |
| 2005-04-19 | 401-335-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | PAWTUCKET | RI |
| 2005-04-13 | 401-477-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-04-13 | 401-477-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-04-13 | 401-477-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-04-13 | 401-477-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2005-04-13 | 401-525-0XXX | 0000–0999 | 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.