NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 870
ONVOY, LLC - AR 5
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
2020-06-02 870-230-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARKADLPHIA AR
2020-06-02 870-345-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARKADLPHIA AR
2020-06-02 870-399-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2020-06-02 870-399-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2020-06-02 870-579-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WALDENBURG AR
2020-06-02 870-579-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WALDENBURG AR
2020-06-02 870-606-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F NOSPRINGHL AR
2020-06-02 870-606-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F NOSPRINGHL AR
2020-06-02 870-617-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2020-06-02 870-617-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2020-06-02 870-729-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F HOPE AR
2020-06-02 870-729-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F HOPE AR
2020-06-02 870-940-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C HAMBURG AR
2020-06-01 870-634-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 PIGGOTT AR
2020-05-15 870-997-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 EUDORA AR
2020-05-12 870-786-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STEPHENS AR
2020-05-12 870-786-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STEPHENS AR
2020-05-11 870-564-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C DELL AR
2020-05-07 870-501-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCGEHEE AR
2020-05-07 870-649-0XXX 0000–0999Assigned E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR 095A STUTTGART AR
2020-04-30 870-529-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARRYVILLE AR
2020-04-30 870-529-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARRYVILLE AR
2020-04-30 870-599-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DODGE CITY AR
2020-04-30 870-676-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDWAY AR
2020-04-30 870-676-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDWAY AR
2020-04-30 870-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRATTSVL AR
2020-04-30 870-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRATTSVL AR
2020-04-30 870-769-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIGGERS AR
2020-04-30 870-769-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIGGERS AR
2020-04-30 870-860-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARDY AR
2020-04-30 870-860-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARDY AR
2020-04-30 870-900-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VIOLA AR
2020-04-30 870-900-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VIOLA AR
2020-04-30 870-913-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SWIFTON AR
2020-04-30 870-913-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SWIFTON AR
2020-04-30 870-916-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CALICOROCK AR
2020-04-30 870-916-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CALICOROCK AR
2020-04-28 870-205-5XXX 5000–5999Assigned E. RITTER COMMUNICATIONS, LLC 128L PARAGOULD AR
2020-04-27 870-769-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BIGGERS AR
2020-04-24 870-399-5XXX 5000–5999Assigned TELNYX LLC 073H BLEVINS AR
2020-04-24 870-432-1XXX 1000–1999Assigned TELNYX LLC 073H PRESCOTT AR
2020-04-24 870-686-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F BODCAW AR
2020-04-24 870-800-5XXX 5000–5999Assigned TELNYX LLC 073H ROSSTON AR
2020-04-24 870-860-0XXX 0000–0999Assigned TELNYX LLC 073H HARDY AR
2020-04-24 870-900-4XXX 4000–4999Assigned TELNYX LLC 073H VIOLA AR
2020-04-23 870-705-7XXX 7000–7999Assigned TELNYX LLC 073H ASH FLAT AR
2020-04-09 870-558-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2020-04-09 870-558-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2020-04-03 870-433-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F CHEROKEVLG AR
2020-04-01 870-283-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAVE CITY AR

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.