NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 573
INTRADO COMMUNICATIONS, LLC 4
ONVOY, LLC - MO 2
BANDWIDTH.COM CLEC, LLC - MO 2
EXIANT COMMUNICATIONS LLC 1
E. RITTER COMMUNICATIONS, 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
2019-10-29 573-269-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F OATES MO
2019-10-29 573-269-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F OATES MO
2019-10-29 573-282-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F MARBLEHILL MO
2019-10-29 573-282-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F MARBLEHILL MO
2019-10-29 573-432-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F IRONTON MO
2019-10-29 573-432-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F IRONTON MO
2019-10-29 573-510-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F JACKSON MO
2019-10-29 573-577-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F HANNIBAL MO
2019-10-29 573-577-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F HANNIBAL MO
2019-10-29 573-594-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F VANDALIA MO
2019-10-29 573-594-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F VANDALIA MO
2019-10-29 573-637-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F LESTERVL MO
2019-10-29 573-637-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F LESTERVL MO
2019-10-28 573-358-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F BONNETERRE MO
2019-10-28 573-463-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F BUNKER MO
2019-10-28 573-463-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F BUNKER MO
2019-10-28 573-538-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F BOSS MO
2019-10-28 573-538-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F BOSS MO
2019-10-28 573-646-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F BLAND MO
2019-10-28 573-646-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F BLAND MO
2019-10-28 573-648-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F CENTERVL MO
2019-10-28 573-648-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F CENTERVL MO
2019-10-28 573-697-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F BELLEVIEW MO
2019-10-28 573-697-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F BELLEVIEW MO
2019-10-28 573-702-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F BLOOMSDALE MO
2019-10-28 573-749-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F IRONDALE MO
2019-10-28 573-766-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F BELGRADE MO
2019-10-28 573-779-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F CALEDONIA MO
2019-10-28 573-779-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F CALEDONIA MO
2019-10-28 573-800-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F CENTER MO
2019-10-28 573-800-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F CENTER MO
2019-10-28 573-920-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ELDON MO
2019-10-28 573-920-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F ELDON MO
2019-10-28 573-946-3XXX 3000–3999Assigned FRACTEL, LLC 965H POCAHONTAS MO
2019-10-28 573-994-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ANNAPOLIS MO
2019-10-28 573-994-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ANNAPOLIS MO
2019-10-25 573-245-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F LEASBURG MO
2019-10-25 573-245-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F LEASBURG MO
2019-10-25 573-367-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F SAFE MO
2019-10-25 573-367-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F SAFE MO
2019-10-25 573-400-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F WESTQUINCY MO
2019-10-25 573-400-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F WESTQUINCY MO
2019-10-25 573-409-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F HERMANN MO
2019-10-25 573-409-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F HERMANN MO
2019-10-25 573-677-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F CUBA MO
2019-10-25 573-679-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F BOURBON MO
2019-10-25 573-679-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F BOURBON MO
2019-10-25 573-859-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F BELLE MO
2019-10-24 573-383-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F CANTON MO
2019-10-24 573-383-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F CANTON 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.