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
2018-12-04 870-454-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 CAMDEN AR
2018-11-26 870-353-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F GURDON AR
2018-11-20 870-580-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MT HOME AR
2018-11-15 870-916-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C CALICOROCK AR
2018-11-07 870-497-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2018-11-06 870-318-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 CHERRY VLY AR
2018-11-02 870-252-4XXX 4000–4999Assigned TELNYX LLC 073H GRUBBS AR
2018-11-02 870-264-0XXX 0000–0999Assigned TELNYX LLC 073H OIL TROUGH AR
2018-11-02 870-339-8XXX 8000–8999Assigned TELNYX LLC 073H HUGHES AR
2018-11-02 870-343-6XXX 6000–6999Assigned TELNYX LLC 073H TURRELL AR
2018-11-02 870-384-3XXX 3000–3999Assigned TELNYX LLC 073H CAVE CITY AR
2018-11-02 870-410-2XXX 2000–2999Assigned TELNYX LLC 073H WILSON AR
2018-11-02 870-477-2XXX 2000–2999Assigned TELNYX LLC 073H CASH AR
2018-11-02 870-493-1XXX 1000–1999Assigned TELNYX LLC 073H DELL AR
2018-11-02 870-521-0XXX 0000–0999Assigned TELNYX LLC 073H NEWARK AR
2018-11-02 870-537-2XXX 2000–2999Assigned TELNYX LLC 073H JOINER AR
2018-11-02 870-614-2XXX 2000–2999Assigned TELNYX LLC 073H LUXORA AR
2018-11-02 870-657-3XXX 3000–3999Assigned TELNYX LLC 073H BLACKFIHLK AR
2018-11-02 870-668-8XXX 8000–8999Assigned TELNYX LLC 073H CONCORD AR
2018-11-02 870-686-1XXX 1000–1999Assigned TELNYX LLC 073H BODCAW AR
2018-11-02 870-697-4XXX 4000–4999Assigned TELNYX LLC 073H HICKORYRDG AR
2018-11-02 870-739-9XXX 9000–9999Assigned TELNYX LLC 073H MARION AR
2018-11-02 870-755-4XXX 4000–4999Assigned TELNYX LLC 073H PARKIN AR
2018-11-02 870-768-0XXX 0000–0999Assigned TELNYX LLC 073H MORO AR
2018-11-02 870-792-2XXX 2000–2999Assigned TELNYX LLC 073H EARLE AR
2018-11-02 870-823-0XXX 0000–0999Assigned TELNYX LLC 073H CRAWFODSVL AR
2018-11-02 870-878-5XXX 5000–5999Assigned TELNYX LLC 073H BLACK ROCK AR
2018-11-01 870-208-0XXX 0000–0999Assigned TELNYX LLC 073H WYNNE AR
2018-11-01 870-271-1XXX 1000–1999Assigned TELNYX LLC 073H HARRISBURG AR
2018-11-01 870-588-8XXX 8000–8999Assigned TELNYX LLC 073H CHERRY VLY AR
2018-11-01 870-662-3XXX 3000–3999Assigned TELNYX LLC 073H MARIANNA AR
2018-11-01 870-724-9XXX 9000–9999Assigned TELNYX LLC 073H GURDON AR
2018-11-01 870-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F ASHDOWN AR
2018-10-31 870-497-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 JONESBORO AR
2018-10-31 870-704-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HARRISON AR
2018-10-26 870-521-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWARK AR
2018-10-25 870-201-9XXX 9000–9999Assigned AIRUS, INC. - AR 578H NEWPORT AR
2018-10-25 870-474-8XXX 8000–8999Assigned AIRUS, INC. - AR 578H HOPE AR
2018-10-24 870-433-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F CHEROKEVLG AR
2018-10-23 870-201-8XXX 8000–8999Assigned TELNYX LLC 073H NEWPORT AR
2018-10-23 870-205-9XXX 9000–9999Assigned TELNYX LLC 073H PARAGOULD AR
2018-10-23 870-228-8XXX 8000–8999Assigned TELNYX LLC 073H HELENA AR
2018-10-23 870-319-1XXX 1000–1999Assigned TELNYX LLC 073H BRINKLEY AR
2018-10-23 870-359-9XXX 9000–9999Assigned TELNYX LLC 073H HOPE AR
2018-10-23 870-409-8XXX 8000–8999Assigned TELNYX LLC 073H BLYTHEVL AR
2018-10-23 870-551-9XXX 9000–9999Assigned TELNYX LLC 073H W MEMPHIS AR
2018-10-23 870-568-9XXX 9000–9999Assigned TELNYX LLC 073H ARKADLPHIA AR
2018-10-23 870-576-1XXX 1000–1999Assigned TELNYX LLC 073H OSCEOLA AR
2018-10-23 870-600-8XXX 8000–8999Assigned TELNYX LLC 073H ASHDOWN AR
2018-10-23 870-637-8XXX 8000–8999Assigned TELNYX LLC 073H WALNUT RDG 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.