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 |
|---|---|---|---|---|---|---|---|
| 2017-08-01 | 401-356-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WOONSOCKET | RI |
| 2017-07-27 | 401-473-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PROVIDENCE | RI |
| 2017-07-20 | 401-204-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | PAWTUCKET | RI |
| 2017-07-20 | 401-204-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PAWTUCKET | RI |
| 2017-07-13 | 401-619-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | NEWPORT | RI |
| 2017-06-27 | 401-753-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | PAWTUCKET | RI |
| 2017-06-20 | 401-430-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2017-06-20 | 401-602-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2017-06-02 | 401-308-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | NARRAGNSTT | RI |
| 2017-05-31 | 401-408-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2017-05-31 | 401-408-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2017-05-31 | 401-408-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | 6389 | PROVIDENCE | RI |
| 2017-05-19 | 401-314-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWPORT | RI |
| 2017-05-04 | 401-204-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | PAWTUCKET | RI |
| 2017-04-28 | 401-214-6XXX | 6000–6999 | Assigned | ONVOY, LLC - RI | 977E | PROVIDENCE | RI |
| 2017-04-28 | 401-216-1XXX | 1000–1999 | Assigned | ONVOY, LLC - RI | 977E | WOONSOCKET | RI |
| 2017-04-28 | 401-262-8XXX | 8000–8999 | Assigned | ONVOY, LLC - RI | 977E | W WARWICK | RI |
| 2017-04-28 | 401-305-1XXX | 1000–1999 | Assigned | ONVOY, LLC - RI | 977E | PAWTUCKET | RI |
| 2017-04-24 | 401-342-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | BRISTOL | RI |
| 2017-04-14 | 401-227-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | SCITUATE | RI |
| 2017-04-14 | 401-247-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WARREN | RI |
| 2017-04-14 | 401-343-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | HOPEVALLEY | RI |
| 2017-04-14 | 401-375-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | TIVERTON | RI |
| 2017-04-14 | 401-409-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | CAROLINA | RI |
| 2017-04-14 | 401-420-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LTLCOMPTON | RI |
| 2017-04-14 | 401-466-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BLOCK IS | RI |
| 2017-04-14 | 401-498-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | WGLOCESTER | RI |
| 2017-04-14 | 401-560-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | JAMESTOWN | RI |
| 2017-04-10 | 401-244-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | WARWICK | RI |
| 2017-04-10 | 401-250-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | W WARWICK | RI |
| 2017-04-10 | 401-269-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | COVENTRY | RI |
| 2017-04-10 | 401-293-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | PORTSMOUTH | RI |
| 2017-04-10 | 401-326-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WESTERLY | RI |
| 2017-04-10 | 401-329-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NO KINGSTN | RI |
| 2017-04-10 | 401-344-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | NEWPORT | RI |
| 2017-04-10 | 401-356-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | WOONSOCKET | RI |
| 2017-04-10 | 401-655-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | BRISTOL | RI |
| 2017-04-10 | 401-710-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PASCOAG | RI |
| 2017-03-06 | 401-470-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2017-03-06 | 401-470-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2017-03-01 | 401-283-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PROVIDENCE | RI |
| 2017-03-01 | 401-425-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | CUMBLND HL | RI |
| 2017-03-01 | 401-515-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NARRAGNSTT | RI |
| 2017-03-01 | 401-618-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CENTREDALE | RI |
| 2017-02-23 | 401-234-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENWICH | RI |
| 2017-02-23 | 401-542-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENWICH | RI |
| 2016-12-29 | 401-342-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF RHODE ISLAND, LLC - RI | 631G | BRISTOL | RI |
| 2016-12-21 | 401-443-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PROVIDENCE | RI |
| 2016-12-15 | 401-470-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PROVIDENCE | RI |
| 2016-12-15 | 401-470-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | 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.