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
2019-04-25 870-716-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-25 870-716-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-25 870-716-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-25 870-716-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-23 870-666-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 JONESBORO AR
2019-04-23 870-686-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F BODCAW AR
2019-04-17 870-666-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JONESBORO AR
2019-04-12 870-716-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HARRISON AR
2019-04-09 870-374-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 GOULD AR
2019-04-09 870-713-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J EL DORADO AR
2019-04-08 870-302-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-08 870-302-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-08 870-302-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-08 870-302-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-03-26 870-714-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HELENA AR
2019-03-14 870-669-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F GLENWOOD AR
2019-03-14 870-669-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F GLENWOOD AR
2019-03-14 870-905-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F MOUNT IDA AR
2019-03-14 870-905-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F MOUNT IDA AR
2019-03-06 870-517-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-02-26 870-801-1XXX 1000–1999Assigned E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR 095A MARSHALL AR
2019-02-21 870-955-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C HARDY AR
2019-02-19 870-517-5XXX 5000–5999Assigned E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR 095A HARRISON AR
2019-02-12 870-380-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 PINE BLUFF AR
2019-02-11 870-709-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F GURDON AR
2019-02-11 870-709-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F GURDON AR
2019-01-29 870-705-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C ASH FLAT AR
2019-01-23 870-739-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION AR
2019-01-18 870-517-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-01-18 870-609-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C POCAHONTAS AR
2019-01-18 870-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H JONESBORO AR
2019-01-18 870-909-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C BERRYVILLE AR
2019-01-08 870-291-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 MELBOURNE AR
2018-12-27 870-433-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F CHEROKEVLG AR
2018-12-19 870-601-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C MONETTE AR
2018-12-17 870-432-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F PRESCOTT AR
2018-12-17 870-432-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F PRESCOTT AR
2018-12-17 870-474-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-12-17 870-722-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-12-17 870-800-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F ROSSTON AR
2018-12-12 870-399-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F BLEVINS AR
2018-12-12 870-444-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 EL DORADO AR
2018-12-05 870-399-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2018-12-05 870-399-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2018-12-05 870-617-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-12-05 870-617-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-12-05 870-686-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F BODCAW AR
2018-12-05 870-686-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F BODCAW AR
2018-12-05 870-751-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F ASH FLAT AR
2018-12-05 870-751-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F 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.