NumberResearch Membership · Data 09/18/2026

Recent thousands-block assignments

2,989 blocks assigned in September 2026 · from the daily NANPA thousands-block report, 09/18/2026

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, September 2026
NEW CINGULAR WIRELESS PCS, LLC - IL 239
NEW CINGULAR WIRELESS PCS, LLC - DC 223
ONVOY, LLC - CA 130
EXIANT COMMUNICATIONS LLC 124
ONVOY, LLC - TX 107
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
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Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2026-09-14 274-227-8XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEENAH WI
2026-09-14 276-304-7XXX VERSATEL LLC 962J DAVENPORT VA
2026-09-14 276-319-5XXX ONVOY, LLC - VA 138E ABINGDON VA
2026-09-14 276-319-6XXX ONVOY, LLC - VA 138E ABINGDON VA
2026-09-14 276-342-6XXX ONVOY, LLC - VA 138E GALAX VA
2026-09-14 308-256-1XXX ONVOY, LLC - NE 549E SCOTSBLUFF NE
2026-09-14 309-666-4XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2026-09-14 309-982-7XXX VERSATEL LLC 962J CANTON IL
2026-09-14 309-993-7XXX VERSATEL LLC 962J ARROWSMITH IL
2026-09-14 313-830-6XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2026-09-14 313-830-7XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2026-09-14 313-830-8XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2026-09-14 313-830-9XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2026-09-14 315-262-3XXX ONVOY, LLC- NY 384C POTSDAM NY
2026-09-14 315-716-9XXX ONVOY, LLC- NY 384C GENEVA NY
2026-09-14 315-740-6XXX ONVOY, LLC- NY 384C MASSENA NY
2026-09-14 316-398-8XXX ONVOY, LLC - KS 205F NEWTON KS
2026-09-14 317-825-1XXX ONVOY, LLC - IN 097D SHELBYVL IN
2026-09-14 317-930-8XXX ONVOY, LLC - IN 097D WHITELAND IN
2026-09-14 318-609-4XXX ONVOY, LLC - LA 749E NATCHITCHS LA
2026-09-14 318-609-5XXX ONVOY, LLC - LA 749E NATCHITCHS LA
2026-09-14 318-707-7XXX ONVOY, LLC - LA 749E MINDEN LA
2026-09-14 318-829-3XXX ONVOY, LLC - LA 749E HAUGHTON LA
2026-09-14 320-880-1XXX 8X8, INC. 193E ST CLOUD MN
2026-09-14 321-533-5XXX ONVOY, LLC - FL 937C COCOABEACH FL
2026-09-14 324-465-0XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2026-09-14 324-465-1XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2026-09-14 324-465-2XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2026-09-14 324-465-6XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2026-09-14 326-247-9XXX ONVOY, LLC - OH 464C ENGLEWOOD OH
2026-09-14 327-324-2XXX ONVOY, LLC - AR 348F MT HOME AR
2026-09-14 329-242-3XXX ONVOY, LLC- NY 384C SUFFERN NY
2026-09-14 331-627-3XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOMBARD IL
2026-09-14 334-492-5XXX ONVOY, LLC - AL 604E TROY AL
2026-09-14 337-576-3XXX ONVOY, LLC - LA 749E EUNICE LA
2026-09-14 337-619-8XXX ONVOY, LLC - LA 749E YOUNGSVL LA
2026-09-14 337-712-0XXX ONVOY, LLC - LA 749E SULPHUR LA
2026-09-14 341-243-7XXX ONVOY, LLC - CA 649C HRCUL-RODE CA
2026-09-14 369-225-0XXX ONVOY, LLC - CA 649C WINDSOR CA
2026-09-14 369-235-8XXX ONVOY, LLC - CA 649C BENICIA CA
2026-09-14 369-238-7XXX ONVOY, LLC - CA 649C HEALDSBURG CA
2026-09-14 369-243-0XXX ONVOY, LLC - CA 649C LOWER LAKE CA
2026-09-14 410-690-0XXX ONVOY, LLC - MD 876D EASTON MD
2026-09-14 410-983-8XXX ONVOY, LLC - MD 876D FORK MD
2026-09-14 412-895-3XXX ONVOY, LLC - PA 547E PTGSBNZN13 PA
2026-09-14 413-516-7XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTFIELD MA
2026-09-14 415-962-9XXX BOOST SUBSCRIBERCO L.L.C. 490J SNFC CNTRL CA
2026-09-14 417-378-8XXX ONVOY, LLC - MO 093F NEOSHO MO
2026-09-14 417-531-9XXX ONVOY, LLC - MO 093F LEBANON MO
2026-09-14 417-565-0XXX ONVOY, LLC - MO 093F WESTPLAINS MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.