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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-12-15 401-771-0XXX 0000–0999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-12-15 401-771-2XXX 2000–2999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-12-15 401-771-9XXX 9000–9999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-12-05 401-317-1XXX 1000–1999Assigned TELNYX LLC 073H GREENWICH RI
2016-10-24 401-921-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WARWICK RI
2016-10-06 401-251-1XXX 1000–1999Assigned THE VOICE APPLICATION NETWORK, LLC 507J PORTSMOUTH RI
2016-09-28 401-537-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-09-27 401-266-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH RI
2016-09-27 401-375-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E TIVERTON RI
2016-09-27 401-594-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2016-09-27 401-767-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOONSOCKET RI
2016-09-20 401-771-3XXX 3000–3999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-09-20 401-771-4XXX 4000–4999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-09-20 401-771-5XXX 5000–5999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-08-09 401-548-9XXX 9000–9999Assigned METROPCS, INC. 5562 PAWTUCKET RI
2016-07-18 401-212-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOPEVALLEY RI
2016-07-08 401-771-6XXX 6000–6999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-07-08 401-771-7XXX 7000–7999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-07-08 401-771-8XXX 8000–8999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-07-01 401-298-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2016-06-23 401-543-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2016-06-23 401-543-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2016-06-15 401-214-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F PROVIDENCE RI
2016-06-09 401-594-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2016-05-20 401-239-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWPORT RI
2016-05-20 401-302-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-05-19 401-298-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WARWICK RI
2016-05-19 401-298-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WARWICK RI
2016-04-25 401-342-0XXX 0000–0999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-342-2XXX 2000–2999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-342-3XXX 3000–3999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-342-4XXX 4000–4999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-342-5XXX 5000–5999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-342-6XXX 6000–6999Assigned HD CARRIER LLC 321J BRISTOL RI
2016-04-25 401-385-1XXX 1000–1999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-25 401-385-2XXX 2000–2999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-25 401-385-4XXX 4000–4999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-25 401-385-6XXX 6000–6999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-25 401-385-7XXX 7000–7999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-25 401-385-8XXX 8000–8999Assigned HD CARRIER LLC 321J COVENTRY RI
2016-04-14 401-302-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-04-14 401-302-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-04-14 401-302-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-04-07 401-666-6XXX 6000–6999Assigned PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 631G CUMBLND HL RI
2016-04-05 401-372-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NO KINGSTN RI
2016-03-23 401-696-0XXX 0000–0999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-03-23 401-696-1XXX 1000–1999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2016-02-25 401-318-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-02-25 401-318-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2016-02-25 401-406-9XXX 9000–9999Assigned 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.