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
2021-05-27 870-306-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F OKOLONA AR
2021-05-27 870-337-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F NORMAN AR
2021-05-27 870-354-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F UMPIRE AR
2021-05-27 870-385-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F WICKES AR
2021-05-27 870-478-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F GILLHAM AR
2021-05-27 870-513-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F ODEN AR
2021-05-27 870-610-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F HATFIELD AR
2021-05-27 870-760-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F LOCKESBURG AR
2021-05-27 870-825-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F DIERKS AR
2021-05-27 870-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J CAMDEN AR
2021-05-27 870-925-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F MURFREESBO AR
2021-05-27 870-982-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F DE QUEEN AR
2021-05-26 870-242-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F DAISY AR
2021-05-26 870-978-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F AMITY AR
2021-05-24 870-409-6XXX 6000–6999Assigned STRATUS NETWORKS 495J BLYTHEVL AR
2021-05-24 870-556-7XXX 7000–7999Assigned E. RITTER COMMUNICATIONS, LLC 128L PINE BLUFF AR
2021-05-17 870-573-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F PARAGOULD AR
2021-05-15 870-276-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F SUCCESS AR
2021-05-12 870-660-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES ARC AR
2021-05-12 870-660-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES ARC AR
2021-05-11 870-292-0XXX 0000–0999Assigned AIRUS, INC. - AR 578H HOPE AR
2021-04-26 870-202-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H POCAHONTAS AR
2021-04-26 870-409-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BLYTHEVL AR
2021-04-26 870-409-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BLYTHEVL AR
2021-04-22 870-505-5XXX 5000–5999Assigned METROPCS, INC. 5562 BERRYVILLE AR
2021-04-21 870-232-3XXX 3000–3999Assigned METROPCS, INC. 5562 MT HOME AR
2021-04-21 870-264-8XXX 8000–8999Assigned METROPCS, INC. 5562 OIL TROUGH AR
2021-04-21 870-719-1XXX 1000–1999Assigned METROPCS, INC. 5562 HARRISON AR
2021-04-18 870-608-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEARDEN AR
2021-04-18 870-771-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION AR
2021-04-18 870-771-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION AR
2021-04-13 870-609-3XXX 3000–3999Assigned METROPCS, INC. 5562 POCAHONTAS AR
2021-04-12 870-621-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F TEXARKANA AR
2021-03-25 870-621-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA AR
2021-03-19 870-201-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F NEWPORT AR
2021-03-19 870-244-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F EARLE AR
2021-03-19 870-362-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F WYNNE AR
2021-03-19 870-362-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F WYNNE AR
2021-03-19 870-396-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F DELAPLAINE AR
2021-03-19 870-409-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F BLYTHEVL AR
2021-03-19 870-493-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F DELL AR
2021-03-19 870-512-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F NEWPORT AR
2021-03-19 870-521-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F NEWARK AR
2021-03-19 870-521-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F NEWARK AR
2021-03-19 870-522-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F LEONARD AR
2021-03-19 870-601-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F MONETTE AR
2021-03-19 870-613-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F BATESVILLE AR
2021-03-19 870-614-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F LUXORA AR
2021-03-19 870-650-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F TRUMANN AR
2021-03-19 870-650-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F TRUMANN 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.