NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 918
NEW CINGULAR WIRELESS PCS, LLC - IL 5
BOOST SUBSCRIBERCO L.L.C. 1
BANDWIDTH.COM CLEC, LLC - OK 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
2016-09-19 918-419-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F SAND SPG OK
2016-09-19 918-467-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F DELAWARE OK
2016-09-19 918-480-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F SPERRY OK
2016-09-19 918-480-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F SPERRY OK
2016-09-19 918-525-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F TAHLEQUAH OK
2016-09-19 918-525-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F TAHLEQUAH OK
2016-09-19 918-552-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F STIGLER OK
2016-09-19 918-552-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F STIGLER OK
2016-09-19 918-553-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F COLLINSVL OK
2016-09-19 918-553-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F COLLINSVL OK
2016-09-19 918-571-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F SALLISAW OK
2016-09-19 918-571-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F SALLISAW OK
2016-09-19 918-601-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F NOWATA OK
2016-09-19 918-601-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F NOWATA OK
2016-09-19 918-604-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F PAWHUSKA OK
2016-09-19 918-604-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F PAWHUSKA OK
2016-09-19 918-612-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F SPIRO OK
2016-09-19 918-612-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F SPIRO OK
2016-09-19 918-618-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F EUFAULA OK
2016-09-19 918-618-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F EUFAULA OK
2016-09-19 918-673-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F PICHER OK
2016-09-19 918-673-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F PICHER OK
2016-09-19 918-674-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F QUAPAW OK
2016-09-19 918-675-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F COMMERCE OK
2016-09-19 918-675-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F COMMERCE OK
2016-09-19 918-701-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F JENKS OK
2016-09-19 918-701-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F JENKS OK
2016-09-19 918-715-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F MCALESTER OK
2016-09-19 918-715-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F MCALESTER OK
2016-09-19 918-716-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F OKEMAH OK
2016-09-19 918-716-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F OKEMAH OK
2016-09-19 918-719-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F COPAN OK
2016-09-19 918-719-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F COPAN OK
2016-09-19 918-723-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F WESTVILLE OK
2016-09-19 918-723-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F WESTVILLE OK
2016-09-19 918-771-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F BRISTOW OK
2016-09-19 918-771-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F BRISTOW OK
2016-09-19 918-789-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2016-09-19 918-801-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F GROVE OK
2016-09-19 918-801-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F GROVE OK
2016-09-19 918-844-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F DRUMRIGHT OK
2016-09-19 918-862-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F OILTON OK
2016-09-19 918-871-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TAHLEQUAH OK
2016-09-19 918-890-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F DRUMRIGHT OK
2016-09-19 918-917-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WILBURTON OK
2016-09-19 918-923-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F CLAREMORE OK
2016-09-19 918-923-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F CLAREMORE OK
2016-09-19 918-937-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F KETCHUM OK
2016-09-19 918-956-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F CLEVELAND OK
2016-09-19 918-956-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CLEVELAND OK

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.