NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

25 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 501
ONVOY, LLC - AR 15
BANDWIDTH.COM CLEC, LLC - AR 5
CSC WIRELESS, LLC 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 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
2018-12-05 501-669-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F CLEVELAND AR
2018-12-05 501-669-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F CLEVELAND AR
2018-11-09 501-653-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRYANTCGVL AR
2018-11-09 501-943-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRYANTCGVL AR
2018-11-02 501-594-9XXX 9000–9999Assigned TELNYX LLC 073H PARON AR
2018-11-02 501-669-5XXX 5000–5999Assigned TELNYX LLC 073H CLEVELAND AR
2018-11-02 501-893-0XXX 0000–0999Assigned TELNYX LLC 073H CENTER RDG AR
2018-11-02 501-939-8XXX 8000–8999Assigned TELNYX LLC 073H LONSDALE AR
2018-11-02 501-991-9XXX 9000–9999Assigned TELNYX LLC 073H CRYSTALSPG AR
2018-11-01 501-550-7XXX 7000–7999Assigned TELNYX LLC 073H GREERSFRRY AR
2018-10-23 501-232-9XXX 9000–9999Assigned TELNYX LLC 073H BEEBE AR
2018-10-23 501-302-8XXX 8000–8999Assigned TELNYX LLC 073H HEBER SPG AR
2018-10-23 501-457-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL AR
2018-10-23 501-510-1XXX 1000–1999Assigned TELNYX LLC 073H LONOKE AR
2018-10-23 501-566-8XXX 8000–8999Assigned TELNYX LLC 073H JONESMILLS AR
2018-10-23 501-601-0XXX 0000–0999Assigned TELNYX LLC 073H MALVERN AR
2018-10-23 501-645-1XXX 1000–1999Assigned TELNYX LLC 073H MORRILTON AR
2018-10-23 501-984-8XXX 8000–8999Assigned TELNYX LLC 073H JESSIEVL AR
2018-10-18 501-254-3XXX 3000–3999Assigned TELNYX LLC 073H SEARCY AR
2018-10-18 501-273-0XXX 0000–0999Assigned TELNYX LLC 073H CONWAY AR
2018-10-18 501-760-9XXX 9000–9999Assigned TELNYX LLC 073H HOTSPRINGS AR
2018-10-16 501-601-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F MALVERN AR
2018-10-16 501-601-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F MALVERN AR
2018-10-10 501-290-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F SEARCY AR
2018-10-10 501-290-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F SEARCY AR
2018-10-10 501-645-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F MORRILTON AR
2018-10-10 501-645-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F MORRILTON AR
2018-10-10 501-887-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F HEBER SPG AR
2018-10-10 501-887-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F HEBER SPG AR
2018-10-04 501-263-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C LITTLEROCK AR
2018-10-04 501-429-0XXX 0000–0999Assigned E. RITTER COMMUNICATIONS, LLC 128L HEBER SPG AR
2018-10-03 501-314-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 GREENBRIER AR
2018-10-02 501-534-0XXX 0000–0999Assigned E. RITTER COMMUNICATIONS, LLC 128L LITTLEROCK AR
2018-10-02 501-534-1XXX 1000–1999Assigned E. RITTER COMMUNICATIONS, LLC 128L LITTLEROCK AR
2018-09-27 501-306-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 QUITMAN AR
2018-09-27 501-808-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VILONIA AR
2018-09-27 501-830-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FERNDALE AR
2018-09-24 501-300-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F BRADFORD AR
2018-09-24 501-506-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F GRIFFITHVL AR
2018-09-24 501-600-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F PLEASANTPL AR
2018-09-24 501-653-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRYANTCGVL AR
2018-09-18 501-200-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F REDFIELD AR
2018-09-18 501-292-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F BALD KNOB AR
2018-09-18 501-299-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F KENSETT AR
2018-09-18 501-424-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F CABOT AR
2018-09-18 501-434-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F MCRAE AR
2018-09-18 501-456-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F JUDSONIA AR
2018-09-18 501-509-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F COY AR
2018-09-18 501-842-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F ENGLAND AR
2018-09-18 501-983-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F JACKSONVL 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.