NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 231
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2
AHOI LLC 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
2003-12-30 231-276-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J INTERLOCHN MI
2003-12-30 231-352-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J FRANKFORT MI
2003-12-30 231-518-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J KALKASKA MI
2003-12-30 231-577-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CADILLAC MI
2003-12-30 231-651-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BEULAH MI
2003-12-30 231-729-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J IRONS MI
2003-12-30 231-734-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J EVART MI
2003-12-30 231-768-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J LE ROY MI
2003-12-30 231-790-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J FREESOIL MI
2003-12-30 231-844-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J INDIAN RIV MI
2003-12-30 231-879-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J FIFE LAKE MI
2003-10-28 231-242-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J HARBOR SPG MI
2003-10-28 231-668-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J TRAVERSECY MI
2003-10-27 231-580-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BIG RAPIDS MI
2003-09-26 231-534-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-09-26 231-534-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-09-26 231-534-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-09-26 231-534-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-18 231-463-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI
2003-08-12 231-676-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLAIRE MI
2003-07-15 231-651-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEULAH MI
2003-06-18 231-794-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 MANISTEE MI
2003-05-16 231-463-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TRAVERSECY MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.