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
2020-11-23 501-382-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F LONSDALE AR
2020-11-23 501-382-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F LONSDALE AR
2020-11-23 501-387-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F BEEBE AR
2020-11-23 501-387-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F BEEBE AR
2020-11-23 501-466-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F COY AR
2020-11-23 501-466-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F COY AR
2020-11-23 501-474-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F MCRAE AR
2020-11-23 501-474-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F MCRAE AR
2020-11-23 501-799-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F PALARM AR
2020-11-23 501-799-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F PALARM AR
2020-11-20 501-567-8XXX 8000–8999Assigned FRACTEL, LLC 965H CENTER RDG AR
2020-11-20 501-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H KENSETT AR
2020-11-19 501-790-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F PARON AR
2020-11-19 501-790-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F PARON AR
2020-11-18 501-300-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F BRADFORD AR
2020-11-18 501-389-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F SEARCY AR
2020-11-18 501-389-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F SEARCY AR
2020-11-18 501-437-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F LONOKE AR
2020-11-18 501-437-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F LONOKE AR
2020-11-18 501-506-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F GRIFFITHVL AR
2020-11-18 501-506-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F GRIFFITHVL AR
2020-11-17 501-394-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F CABOT AR
2020-11-06 501-403-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-11-06 501-403-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-11-06 501-403-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-11-06 501-403-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-11-06 501-403-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-10-21 501-292-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BALD KNOB AR
2020-10-21 501-530-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F BALD KNOB AR
2020-10-13 501-887-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J HEBER SPG AR
2020-10-13 501-915-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J JESSIEVL AR
2020-10-13 501-961-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J SCOTT AR
2020-10-12 501-430-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-10-12 501-430-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-10-12 501-430-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-10-12 501-430-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F BENTON AR
2020-10-06 501-439-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C ENGLAND AR
2020-10-05 501-445-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-445-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOTSPRINGS AR
2020-10-05 501-521-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F HOTSPRINGS AR
2020-10-05 501-521-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F HOTSPRINGS AR
2020-09-21 501-441-1XXX 1000–1999Assigned NUSO, LLC 478J LITTLEROCK 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.