NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

26 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 636
ONVOY, LLC - MO 24
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - MO 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
2019-10-25 636-585-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F HIGH HILL MO
2019-10-25 636-585-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F HIGH HILL MO
2019-10-25 636-597-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F TRUXTON MO
2019-10-25 636-597-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F TRUXTON MO
2019-10-25 636-622-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 TROY MO
2019-10-25 636-622-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F TROY MO
2019-10-25 636-622-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F TROY MO
2019-10-25 636-661-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F OLD MONROE MO
2019-10-25 636-661-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F OLD MONROE MO
2019-10-25 636-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H GRAYSUMMIT MO
2019-10-25 636-755-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F DARDENNE MO
2019-10-25 636-755-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F DARDENNE MO
2019-10-25 636-782-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F HOLSTEIN MO
2019-10-25 636-782-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F HOLSTEIN MO
2019-10-22 636-389-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ST CHARLES MO
2019-10-17 636-793-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARVESTER MO
2019-09-06 636-551-5XXX 5000–5999Assigned TELNYX LLC 073H CEDAR HILL MO
2019-09-04 636-637-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 FSSCRSTLCY MO
2019-09-04 636-637-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 FSSCRSTLCY MO
2019-08-28 636-330-2XXX 2000–2999Assigned TELNYX LLC 073H DE SOTO MO
2019-08-28 636-829-2XXX 2000–2999Assigned TELNYX LLC 073H HIGH RIDGE MO
2019-08-12 636-389-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES MO
2019-08-07 636-849-3XXX 3000–3999Assigned METROPCS, INC. 5562 OFALLON MO
2019-08-05 636-275-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MAXVILLE MO
2019-08-05 636-900-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 WASHINGTON MO
2019-08-05 636-900-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 WASHINGTON MO
2019-07-12 636-777-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHESTERFLD MO
2019-06-21 636-793-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARVESTER MO
2019-06-03 636-622-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TROY MO
2019-05-22 636-849-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OFALLON MO
2019-05-15 636-585-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E HIGH HILL MO
2019-04-23 636-202-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F WARRENTON MO
2019-04-23 636-202-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F WARRENTON MO
2019-04-23 636-205-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F WINFIELD MO
2019-04-23 636-205-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F WINFIELD MO
2019-04-23 636-278-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F ST PETERS MO
2019-04-23 636-626-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F ST PETERS MO
2019-04-23 636-626-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F ST PETERS MO
2019-04-23 636-706-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F ST PETERS MO
2019-04-19 636-238-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MANCHESTER MO
2019-04-19 636-330-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F DE SOTO MO
2019-04-19 636-330-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F DE SOTO MO
2019-04-19 636-392-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F WASHINGTON MO
2019-04-19 636-405-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F POND MO
2019-04-19 636-422-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F POND MO
2019-04-19 636-435-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F VALLEYPARK MO
2019-04-19 636-587-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F EUREKA MO
2019-04-19 636-587-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F EUREKA MO
2019-04-19 636-742-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F GRAYSUMMIT MO
2019-04-19 636-742-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F GRAYSUMMIT MO

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.