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
2004-03-12 401-227-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 SCITUATE RI
2004-03-12 401-396-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 BRISTOL RI
2004-03-04 401-343-9XXX 9000–9999Assigned AT&T - LOCAL 7421 HOPEVALLEY RI
2004-03-04 401-699-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2004-02-23 401-699-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2004-02-13 401-398-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GREENWICH RI
2004-02-10 401-218-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2004-02-10 401-569-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2004-02-10 401-569-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2004-02-10 401-569-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2004-02-10 401-569-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2004-02-06 401-699-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2004-02-03 401-424-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BRISTOL RI
2004-01-16 401-372-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J NO KINGSTN RI
2003-12-19 401-667-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J NO KINGSTN RI
2003-12-19 401-667-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NO KINGSTN RI
2003-12-19 401-667-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NO KINGSTN RI
2003-12-04 401-282-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-12-02 401-410-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7351 BRISTOL RI
2003-11-05 401-230-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-11-04 401-315-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7351 WESTERLY RI
2003-10-28 401-228-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2003-10-28 401-615-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J W WARWICK RI
2003-10-10 401-490-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PROVIDENCE RI
2003-10-08 401-230-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-10-06 401-787-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-10-06 401-787-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-10-06 401-787-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-10-06 401-787-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-09-15 401-230-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-09-15 401-230-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-09-15 401-230-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-09-15 401-230-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-09-08 401-383-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2003-08-26 401-243-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2003-07-25 401-234-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 GREENWICH RI
2003-07-25 401-237-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 WARREN RI
2003-07-25 401-404-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - RI 4016 CENTREDALE RI
2003-07-25 401-699-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PROVIDENCE RI
2003-07-24 401-490-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PROVIDENCE RI
2003-07-15 401-569-1XXX 1000–1999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2003-07-15 401-569-2XXX 2000–2999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2003-07-15 401-569-3XXX 3000–3999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2003-07-15 401-714-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-07-15 401-787-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-07-15 401-787-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-07-15 401-787-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-07-15 401-787-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2003-06-23 401-404-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J CENTREDALE RI
2003-06-10 401-243-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 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.