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
2014-12-09 870-895-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SALEM AR
2014-12-09 870-966-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OZARKACRES AR
2014-12-09 870-992-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ALMYRA AR
2014-12-08 870-258-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OXFORD AR
2014-12-08 870-266-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EVENNGSHAD AR
2014-12-08 870-292-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F HOPE AR
2014-12-08 870-297-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CALICOROCK AR
2014-12-08 870-455-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F NASHVILLE AR
2014-12-08 870-458-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VIOLA AR
2014-12-08 870-459-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 COTTONPLNT AR
2014-12-08 870-467-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GAMALIEL AR
2014-12-08 870-482-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARAWAY AR
2014-12-08 870-488-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HENDERSON AR
2014-12-08 870-528-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JESUP AR
2014-12-08 870-647-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MAYNARD AR
2014-12-08 870-667-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F ASHDOWN AR
2014-12-08 870-747-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 CLARENDON AR
2014-12-08 870-854-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HICKORY PL AR
2014-12-08 870-873-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HUMPHREY AR
2014-12-05 870-276-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 SUCCESS AR
2014-12-05 870-486-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONETTE AR
2014-12-05 870-625-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAMMOTHSPG AR
2014-12-05 870-781-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BAY AR
2014-12-05 870-829-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MARVELL AR
2014-12-05 870-874-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLEVINS AR
2014-12-01 870-419-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PINE BLUFF AR
2014-11-25 870-280-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARRISON AR
2014-11-25 870-606-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOSPRINGHL AR
2014-11-25 870-841-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MARSHALL AR
2014-11-25 870-925-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MURFREESBO AR
2014-11-18 870-759-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 WALNUT RDG AR
2014-11-17 870-581-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORREST CY AR
2014-11-13 870-573-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 PARAGOULD AR
2014-11-07 870-227-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRUMANN AR
2014-11-07 870-291-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MELBOURNE AR
2014-11-07 870-710-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHEROKEVLG AR
2014-11-07 870-750-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HORSEHBEND AR
2014-11-06 870-202-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POCAHONTAS AR
2014-11-06 870-301-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 AUGUSTA AR
2014-11-06 870-303-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HAZEN AR
2014-11-06 870-324-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PIGGOTT AR
2014-11-06 870-344-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DE WITT AR
2014-11-06 870-552-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 CARLISLE AR
2014-11-06 870-631-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CORNING AR
2014-11-06 870-660-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DES ARC AR
2014-11-06 870-731-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCCRORY AR
2014-11-06 870-783-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RECTOR AR
2014-11-06 870-796-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PRESCOTT AR
2014-11-06 870-955-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARDY AR
2014-11-05 870-751-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ASH FLAT 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.