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
2018-11-08 636-338-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F HAWK POINT MO
2018-11-08 636-355-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F FOLEY MO
2018-11-08 636-366-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F MOSCOW ML MO
2018-11-08 636-398-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F NEW MELLE MO
2018-11-08 636-488-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F JONESBURG MO
2018-11-08 636-538-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F WENTZVILLE MO
2018-11-08 636-585-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F HIGH HILL MO
2018-11-08 636-597-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F TRUXTON MO
2018-11-08 636-622-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F TROY MO
2018-11-08 636-626-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ST PETERS MO
2018-11-08 636-661-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F OLD MONROE MO
2018-11-08 636-745-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F WRIGHTCITY MO
2018-11-08 636-782-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F HOLSTEIN MO
2018-11-08 636-798-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F DEFIANCE MO
2018-11-08 636-849-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F OFALLON MO
2018-10-16 636-215-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 MAXVILLE MO
2018-10-09 636-386-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANCHESTER MO
2018-10-09 636-386-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANCHESTER MO
2018-09-21 636-923-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F VALLEYPARK MO
2018-09-21 636-923-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F VALLEYPARK MO
2018-09-21 636-923-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F VALLEYPARK MO
2018-09-21 636-923-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F VALLEYPARK MO
2018-09-19 636-202-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 WARRENTON MO
2018-07-12 636-273-8XXX 8000–8999Assigned TELNYX LLC 073H POND MO
2018-07-12 636-306-8XXX 8000–8999Assigned TELNYX LLC 073H HERCUMPVLY MO
2018-07-12 636-323-0XXX 0000–0999Assigned TELNYX LLC 073H ANTONIA MO
2018-07-12 636-429-8XXX 8000–8999Assigned TELNYX LLC 073H EUREKA MO
2018-07-10 636-263-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HARVESTER MO
2018-06-28 636-303-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UNION MO
2018-06-28 636-303-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UNION MO
2018-06-22 636-706-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST PETERS MO
2018-06-12 636-387-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST PETERS MO
2018-04-26 636-292-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-04-26 636-292-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHESTERFLD MO
2018-03-28 636-488-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 JONESBURG MO
2018-03-28 636-585-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 HIGH HILL MO
2018-03-20 636-445-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E WENTZVILLE MO
2018-03-05 636-303-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 UNION MO
2018-03-05 636-622-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TROY MO
2018-03-05 636-778-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHESTERFLD MO
2018-02-27 636-622-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 TROY MO
2018-01-31 636-686-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANCHESTER 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.