NumberResearch Membership · Data 09/18/2026

Recent thousands-block assignments

2,279 blocks assigned in January 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, January 2026
NEW CINGULAR WIRELESS PCS, LLC - GA 243
NEW CINGULAR WIRELESS PCS, LLC - DC 224
NEW CINGULAR WIRELESS PCS, LLC - IL 223
TERRA NOVA TELECOM INC. 180
ONVOY, LLC - CA 92
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
2026-01-26 854-303-6XXX POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2026-01-26 906-336-0XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IRONWOOD MI
2026-01-26 959-278-1XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-01-23 207-714-8XXX BELL ATLANTIC MOBILE, INC 6386 WEST GRAY ME
2026-01-23 219-567-6XXX TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 FRANCESVL IN
2026-01-23 253-235-8XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-01-23 253-440-1XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-01-23 253-443-0XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-01-23 283-300-0XXX BOOST SUBSCRIBERCO L.L.C. 490J MIDDLETOWN OH
2026-01-23 283-300-1XXX BOOST SUBSCRIBERCO L.L.C. 490J MIDDLETOWN OH
2026-01-23 283-300-2XXX BOOST SUBSCRIBERCO L.L.C. 490J MIDDLETOWN OH
2026-01-23 283-300-3XXX BOOST SUBSCRIBERCO L.L.C. 490J MIDDLETOWN OH
2026-01-23 316-215-3XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHITEWATER KS
2026-01-23 336-295-4XXX IP HORIZON LLC 515J MONTICELLO NC
2026-01-23 336-732-1XXX IP HORIZON LLC 515J WINSTN SAL NC
2026-01-23 336-742-2XXX IP HORIZON LLC 515J ANDERSON NC
2026-01-23 336-892-0XXX IP HORIZON LLC 515J JULIAN NC
2026-01-23 336-974-7XXX IP HORIZON LLC 515J RUFFIN NC
2026-01-23 475-394-0XXX BANDWIDTH.COM CLEC, LLC - CT 199F ANSONIDRBY CT
2026-01-23 507-551-7XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LACRESCENT MN
2026-01-23 559-368-7XXX CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TULARE CA
2026-01-23 559-670-7XXX BANDWIDTH.COM CLEC, LLC - CA 981E HANFORD CA
2026-01-23 564-238-0XXX NEW CINGULAR WIRELESS PCS, LLC 6010 PORT ORCH WA
2026-01-23 686-686-5XXX BOOST SUBSCRIBERCO L.L.C. 490J CHARLES CY VA
2026-01-23 743-228-4XXX IP HORIZON LLC 515J SUMMERFLD NC
2026-01-23 743-261-4XXX IP HORIZON LLC 515J BURLINGTON NC
2026-01-23 743-280-1XXX IP HORIZON LLC 515J SAXAPAHAW NC
2026-01-23 743-296-6XXX IP HORIZON LLC 515J REIDSVILLE NC
2026-01-23 743-465-4XXX IP HORIZON LLC 515J KIMESVILLE NC
2026-01-23 779-440-0XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-1XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-2XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-3XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-4XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-5XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-6XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-7XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-8XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-440-9XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-0XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-1XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-2XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-3XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-4XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-5XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-6XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-7XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-8XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-441-9XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2026-01-23 779-442-8XXX NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL

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.