NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 4
ONVOY, LLC - RI 2
BANDWIDTH.COM CLEC, LLC - RI 2
TELNYX LLC 1
LEVEL 3 COMMUNICATIONS, LLC - RI 1
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-08-10 401-306-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CUMBLND HL RI
2021-08-10 401-306-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CUMBLND HL RI
2021-08-10 401-471-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 GREENWICH RI
2021-08-10 401-471-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 GREENWICH RI
2021-08-06 401-526-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J WOONSOCKET RI
2021-08-06 401-542-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J GREENWICH RI
2021-08-06 401-843-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J NEWPORT RI
2021-08-03 401-874-0XXX 0000–0999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2021-08-03 401-874-1XXX 1000–1999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2021-07-30 401-362-0XXX 0000–0999Assigned COMMIO, LLC 939H PAWTUCKET RI
2021-07-30 401-362-1XXX 1000–1999Assigned COMMIO, LLC 939H PAWTUCKET RI
2021-07-30 401-362-2XXX 2000–2999Assigned COMMIO, LLC 939H PAWTUCKET RI
2021-07-30 401-362-3XXX 3000–3999Assigned COMMIO, LLC 939H PAWTUCKET RI
2021-07-30 401-362-8XXX 8000–8999Assigned COMMIO, LLC 939H PAWTUCKET RI
2021-07-29 401-373-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F CENTREDALE RI
2021-07-29 401-373-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F CENTREDALE RI
2021-07-27 401-600-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 PROVIDENCE RI
2021-07-20 401-355-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2021-07-20 401-373-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2021-07-20 401-373-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2021-07-20 401-373-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2021-07-14 401-341-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWPORT RI
2021-07-14 401-799-6XXX 6000–6999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2021-07-14 401-799-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2021-07-14 401-799-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2021-07-07 401-795-9XXX 9000–9999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2021-07-01 401-362-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2021-06-30 401-212-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOPEVALLEY RI
2021-06-30 401-795-0XXX 0000–0999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2021-06-29 401-385-0XXX 0000–0999Assigned TELNYX LLC 073H COVENTRY RI
2021-06-28 401-656-9XXX 9000–9999Assigned PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 631G WESTERLY RI
2021-06-28 401-777-9XXX 9000–9999Assigned PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 631G LTLCOMPTON RI
2021-06-22 401-360-0XXX 0000–0999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2021-06-17 401-562-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2021-06-17 401-681-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2021-06-08 401-249-8XXX 8000–8999Assigned COMMIO, LLC 939H COVENTRY RI
2021-06-08 401-313-0XXX 0000–0999Assigned COMMIO, LLC 939H COVENTRY RI
2021-06-08 401-313-8XXX 8000–8999Assigned COMMIO, LLC 939H COVENTRY RI
2021-06-08 401-313-9XXX 9000–9999Assigned COMMIO, LLC 939H COVENTRY RI
2021-06-08 401-600-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 PROVIDENCE RI
2021-06-04 401-379-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D NO KINGSTN RI
2021-06-04 401-773-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D WARWICK RI
2021-06-01 401-317-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 GREENWICH RI
2021-05-27 401-643-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E PORTSMOUTH RI
2021-05-27 401-643-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E PORTSMOUTH RI
2021-05-25 401-361-0XXX 0000–0999Assigned TELNYX LLC 073H WARWICK RI
2021-05-11 401-205-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2021-05-04 401-252-8XXX 8000–8999Assigned TELNYX LLC 073H WARREN RI
2021-05-04 401-542-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREENWICH RI
2021-05-04 401-600-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 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.