NumberResearch Membership · Data 09/18/2026

Recent thousands-block assignments

5,006 blocks assigned in the last 30 days · 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, last 30 days
NEW CINGULAR WIRELESS PCS, LLC - IL 379
ONVOY, LLC - CA 366
NEW CINGULAR WIRELESS PCS, LLC - DC 329
OPENTACT INC. 193
ONVOY, LLC - TX 177
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
AssignedBlockAssigneeOCNRate centerState
2026-09-04 430-907-0XXX ONVOY, LLC - TX 903C PARIS TX
2026-09-04 430-907-1XXX ONVOY, LLC - TX 903C PARIS TX
2026-09-04 432-280-6XXX ONVOY, LLC - TX 903C ODESSA TX
2026-09-04 440-830-5XXX ONVOY, LLC - OH 464C LORAIN OH
2026-09-04 440-920-1XXX ONVOY, LLC - OH 464C WILLOUGHBY OH
2026-09-04 443-516-0XXX ONVOY, LLC - MD 876D SYKESVILLE MD
2026-09-04 443-516-1XXX ONVOY, LLC - MD 876D SYKESVILLE MD
2026-09-04 447-209-2XXX TELNYX LLC 073H SPRINGFLD IL
2026-09-04 475-381-4XXX ONVOY, LLC - CT 639C WALLINGFD CT
2026-09-04 475-381-5XXX ONVOY, LLC - CT 639C WALLINGFD CT
2026-09-04 507-987-2XXX U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ROCHESTER MN
2026-09-04 508-724-0XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2026-09-04 508-724-1XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2026-09-04 508-724-2XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2026-09-04 520-735-7XXX INTRADO COMMUNICATIONS, LLC 890G SIERRAVIST AZ
2026-09-04 520-765-7XXX INTRADO COMMUNICATIONS, LLC 890G CASAGRANDE AZ
2026-09-04 530-998-5XXX T-MOBILE USA, INC. 6529 AUBN MAIN CA
2026-09-04 530-998-6XXX T-MOBILE USA, INC. 6529 AUBN MAIN CA
2026-09-04 557-259-1XXX ONVOY, LLC - MO 093F SAPPINGTON MO
2026-09-04 557-259-2XXX ONVOY, LLC - MO 093F SAPPINGTON MO
2026-09-04 564-400-0XXX LTE WIRELESS INC. 498M VANCOUVER WA
2026-09-04 567-481-3XXX ONVOY, LLC - OH 464C HOLLAND OH
2026-09-04 567-481-4XXX ONVOY, LLC - OH 464C HOLLAND OH
2026-09-04 603-420-5XXX BELL ATLANTIC MOBILE, INC 6386 MERRIMACK NH
2026-09-04 609-779-9XXX ONVOY, LLC - NJ 637C PLAINSBORO NJ
2026-09-04 615-518-0XXX ONVOY, LLC - TN 525E GALLATIN TN
2026-09-04 615-518-1XXX ONVOY, LLC - TN 525E GALLATIN TN
2026-09-04 629-315-4XXX ONVOY, LLC - TN 525E MT JULIET TN
2026-09-04 629-315-5XXX ONVOY, LLC - TN 525E MT JULIET TN
2026-09-04 640-234-6XXX ONVOY, LLC - NJ 637C PLAINSBORO NJ
2026-09-04 640-238-5XXX ONVOY, LLC - NJ 637C BURLINGTON NJ
2026-09-04 640-238-6XXX ONVOY, LLC - NJ 637C BURLINGTON NJ
2026-09-04 640-271-3XXX ONVOY, LLC - NJ 637C WILDWOOD NJ
2026-09-04 640-283-7XXX ONVOY, LLC - NJ 637C HIGHTSTOWN NJ
2026-09-04 640-291-3XXX ONVOY, LLC - NJ 637C MOUNTHOLLY NJ
2026-09-04 640-306-0XXX ONVOY, LLC - NJ 637C WILDWOOD NJ
2026-09-04 662-805-7XXX U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J AMORY MS
2026-09-04 667-479-8XXX ONVOY, LLC - MD 876D ELLICOTTCY MD
2026-09-04 667-508-4XXX ONVOY, LLC - MD 876D WOODLAWN MD
2026-09-04 667-508-5XXX ONVOY, LLC - MD 876D WOODLAWN MD
2026-09-04 667-552-0XXX ONVOY, LLC - MD 876D SEVERNA PK MD
2026-09-04 667-552-1XXX ONVOY, LLC - MD 876D SEVERNA PK MD
2026-09-04 682-506-5XXX HD CARRIER LLC 321J FORT WORTH TX
2026-09-04 682-506-6XXX HD CARRIER LLC 321J FORT WORTH TX
2026-09-04 682-506-7XXX HD CARRIER LLC 321J FORT WORTH TX
2026-09-04 728-241-2XXX ONVOY, LLC - FL 937C BOCA RATON FL
2026-09-04 728-241-3XXX ONVOY, LLC - FL 937C BOCA RATON FL
2026-09-04 728-241-5XXX ONVOY, LLC - FL 937C BOCA RATON FL
2026-09-04 801-851-9XXX ONVOY, LLC - UT 871E PROVO UT
2026-09-04 801-998-0XXX ONVOY, LLC - UT 871E MIDVALE UT

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.