NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 618
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 2
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
2019-06-29 618-389-4XXX 4000–4999Assigned ONVOY, LLC 224C ASHLEY IL
2019-06-29 618-389-5XXX 5000–5999Assigned ONVOY, LLC 224C ASHLEY IL
2019-06-29 618-400-4XXX 4000–4999Assigned ONVOY, LLC 224C MILLSTADT IL
2019-06-29 618-400-5XXX 5000–5999Assigned ONVOY, LLC 224C MILLSTADT IL
2019-06-29 618-405-5XXX 5000–5999Assigned ONVOY, LLC 224C HECKER IL
2019-06-29 618-405-6XXX 6000–6999Assigned ONVOY, LLC 224C HECKER IL
2019-06-29 618-418-2XXX 2000–2999Assigned ONVOY, LLC 224C BELLEVILLE IL
2019-06-29 618-418-3XXX 3000–3999Assigned ONVOY, LLC 224C BELLEVILLE IL
2019-06-29 618-418-4XXX 4000–4999Assigned ONVOY, LLC 224C BELLEVILLE IL
2019-06-29 618-424-5XXX 5000–5999Assigned ONVOY, LLC 224C ADDIEVILLE IL
2019-06-29 618-427-1XXX 1000–1999Assigned ONVOY, LLC 224C BROWNSTOWN IL
2019-06-29 618-427-8XXX 8000–8999Assigned ONVOY, LLC 224C BROWNSTOWN IL
2019-06-29 618-437-7XXX 7000–7999Assigned ONVOY, LLC 224C INA IL
2019-06-29 618-437-8XXX 8000–8999Assigned ONVOY, LLC 224C INA IL
2019-06-29 618-448-5XXX 5000–5999Assigned ONVOY, LLC 224C MASCOUTAH IL
2019-06-29 618-448-6XXX 6000–6999Assigned ONVOY, LLC 224C MASCOUTAH IL
2019-06-29 618-489-3XXX 3000–3999Assigned ONVOY, LLC 224C EDGEMONT IL
2019-06-29 618-489-4XXX 4000–4999Assigned ONVOY, LLC 224C EDGEMONT IL
2019-06-29 618-492-2XXX 2000–2999Assigned ONVOY, LLC 224C EDGEWOOD IL
2019-06-29 618-492-3XXX 3000–3999Assigned ONVOY, LLC 224C EDGEWOOD IL
2019-06-29 618-493-2XXX 2000–2999Assigned ONVOY, LLC 224C HOYLETON IL
2019-06-29 618-493-8XXX 8000–8999Assigned ONVOY, LLC 224C HOYLETON IL
2019-06-29 618-495-3XXX 3000–3999Assigned ONVOY, LLC 224C HOFFMAN IL
2019-06-29 618-495-4XXX 4000–4999Assigned ONVOY, LLC 224C HOFFMAN IL
2019-06-29 618-500-2XXX 2000–2999Assigned ONVOY, LLC 224C GRANITE CY IL
2019-06-29 618-500-3XXX 3000–3999Assigned ONVOY, LLC 224C GRANITE CY IL
2019-06-29 618-500-4XXX 4000–4999Assigned ONVOY, LLC 224C GRANITE CY IL
2019-06-29 618-515-6XXX 6000–6999Assigned ONVOY, LLC 224C E ST LOUIS IL
2019-06-29 618-515-7XXX 7000–7999Assigned ONVOY, LLC 224C E ST LOUIS IL
2019-06-29 618-556-3XXX 3000–3999Assigned ONVOY, LLC 224C JERSEYVL IL
2019-06-29 618-556-4XXX 4000–4999Assigned ONVOY, LLC 224C JERSEYVL IL
2019-06-29 618-588-0XXX 0000–0999Assigned ONVOY, LLC 224C NEW BADEN IL
2019-06-29 618-653-2XXX 2000–2999Assigned ONVOY, LLC 224C KAMPSVILLE IL
2019-06-29 618-653-5XXX 5000–5999Assigned ONVOY, LLC 224C KAMPSVILLE IL
2019-06-29 618-677-4XXX 4000–4999Assigned ONVOY, LLC 224C FAYETTEVL IL
2019-06-29 618-677-5XXX 5000–5999Assigned ONVOY, LLC 224C FAYETTEVL IL
2019-06-29 618-701-3XXX 3000–3999Assigned ONVOY, LLC 224C HIGHLAND IL
2019-06-29 618-701-4XXX 4000–4999Assigned ONVOY, LLC 224C HIGHLAND IL
2019-06-29 618-706-2XXX 2000–2999Assigned ONVOY, LLC 224C BATCHTOWN IL
2019-06-29 618-706-3XXX 3000–3999Assigned ONVOY, LLC 224C BATCHTOWN IL
2019-06-29 618-729-5XXX 5000–5999Assigned ONVOY, LLC 224C MEDORA IL
2019-06-29 618-729-6XXX 6000–6999Assigned ONVOY, LLC 224C MEDORA IL
2019-06-29 618-749-6XXX 6000–6999Assigned ONVOY, LLC 224C KEYESPORT IL
2019-06-29 618-749-8XXX 8000–8999Assigned ONVOY, LLC 224C KEYESPORT IL
2019-06-29 618-753-4XXX 4000–4999Assigned ONVOY, LLC 224C CHESTERBDG IL
2019-06-29 618-753-6XXX 6000–6999Assigned ONVOY, LLC 224C CHESTERBDG IL
2019-06-29 618-765-3XXX 3000–3999Assigned ONVOY, LLC 224C BARTELSO IL
2019-06-29 618-765-4XXX 4000–4999Assigned ONVOY, LLC 224C BARTELSO IL
2019-06-29 618-778-3XXX 3000–3999Assigned ONVOY, LLC 224C HETTICK IL
2019-06-29 618-787-1XXX 1000–1999Assigned ONVOY, LLC 224C DUBOIS IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.