NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 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
2021-02-02 618-280-4XXX 4000–4999Assigned ONVOY, LLC 224C ADDIEVILLE IL
2021-02-02 618-328-6XXX 6000–6999Assigned ONVOY, LLC 224C DOW IL
2021-02-02 618-331-4XXX 4000–4999Assigned ONVOY, LLC 224C CARBONDALE IL
2021-02-02 618-331-5XXX 5000–5999Assigned ONVOY, LLC 224C CARBONDALE IL
2021-02-02 618-331-6XXX 6000–6999Assigned ONVOY, LLC 224C CARBONDALE IL
2021-02-02 618-348-3XXX 3000–3999Assigned ONVOY, LLC 224C HERRICK IL
2021-02-02 618-350-5XXX 5000–5999Assigned ONVOY, LLC 224C MARINE IL
2021-02-02 618-356-5XXX 5000–5999Assigned ONVOY, LLC 224C BUNKERHILL IL
2021-02-02 618-361-2XXX 2000–2999Assigned ONVOY, LLC 224C PINCKNEYVL IL
2021-02-02 618-361-7XXX 7000–7999Assigned ONVOY, LLC 224C PINCKNEYVL IL
2021-02-02 618-386-6XXX 6000–6999Assigned ONVOY, LLC 224C HURST IL
2021-02-02 618-389-2XXX 2000–2999Assigned ONVOY, LLC 224C ASHLEY IL
2021-02-02 618-403-3XXX 3000–3999Assigned ONVOY, LLC 224C FLORA IL
2021-02-02 618-408-4XXX 4000–4999Assigned ONVOY, LLC 224C BECKEMEYER IL
2021-02-02 618-415-4XXX 4000–4999Assigned ONVOY, LLC 224C BEECHER CY IL
2021-02-02 618-437-2XXX 2000–2999Assigned ONVOY, LLC 224C INA IL
2021-02-02 618-450-5XXX 5000–5999Assigned ONVOY, LLC 224C MT CARMEL IL
2021-02-02 618-469-3XXX 3000–3999Assigned ONVOY, LLC 224C ROBINSON IL
2021-02-02 618-486-6XXX 6000–6999Assigned ONVOY, LLC 224C LAWRENCEVL IL
2021-02-02 618-498-0XXX 0000–0999Assigned ONVOY, LLC 224C JERSEYVL IL
2021-02-02 618-506-6XXX 6000–6999Assigned ONVOY, LLC 224C HETTICK IL
2021-02-02 618-552-3XXX 3000–3999Assigned ONVOY, LLC 224C SANDOVAL IL
2021-02-02 618-575-5XXX 5000–5999Assigned ONVOY, LLC 224C SEFTON IL
2021-02-02 618-576-7XXX 7000–7999Assigned ONVOY, LLC 224C HARDIN IL
2021-02-02 618-577-5XXX 5000–5999Assigned ONVOY, LLC 224C BREESE IL
2021-02-02 618-590-9XXX 9000–9999Assigned ONVOY, LLC 224C DIX IL
2021-02-02 618-591-3XXX 3000–3999Assigned ONVOY, LLC 224C ELDORADO IL
2021-02-02 618-591-4XXX 4000–4999Assigned ONVOY, LLC 224C ELDORADO IL
2021-02-02 618-595-5XXX 5000–5999Assigned ONVOY, LLC 224C SHIPMAN IL
2021-02-02 618-598-3XXX 3000–3999Assigned ONVOY, LLC 224C OKAWVILLE IL
2021-02-02 618-608-6XXX 6000–6999Assigned ONVOY, LLC 224C NEW MINDEN IL
2021-02-02 618-617-1XXX 1000–1999Assigned ONVOY, LLC 224C OLNEY IL
2021-02-02 618-617-2XXX 2000–2999Assigned ONVOY, LLC 224C OLNEY IL
2021-02-02 618-620-6XXX 6000–6999Assigned ONVOY, LLC 224C HAMBURG IL
2021-02-02 618-621-2XXX 2000–2999Assigned ONVOY, LLC 224C CAIRO IL
2021-02-02 618-621-3XXX 3000–3999Assigned ONVOY, LLC 224C CAIRO IL
2021-02-02 618-625-7XXX 7000–7999Assigned ONVOY, LLC 224C SESSER IL
2021-02-02 618-657-3XXX 3000–3999Assigned ONVOY, LLC 224C CYPRESS IL
2021-02-02 618-718-5XXX 5000–5999Assigned ONVOY, LLC 224C ALBION IL
2021-02-02 618-718-6XXX 6000–6999Assigned ONVOY, LLC 224C ALBION IL
2021-02-02 618-724-8XXX 8000–8999Assigned ONVOY, LLC 224C CHRISTOPHR IL
2021-02-02 618-733-5XXX 5000–5999Assigned ONVOY, LLC 224C CARTERVL IL
2021-02-02 618-733-6XXX 6000–6999Assigned ONVOY, LLC 224C CARTERVL IL
2021-02-02 618-754-7XXX 7000–7999Assigned ONVOY, LLC 224C DUNDAS IL
2021-02-02 618-762-6XXX 6000–6999Assigned ONVOY, LLC 224C WALTONVL IL
2021-02-02 618-827-6XXX 6000–6999Assigned ONVOY, LLC 224C DONGOLA IL
2021-02-02 618-852-8XXX 8000–8999Assigned ONVOY, LLC 224C NEWTON IL
2021-02-02 618-891-7XXX 7000–7999Assigned ONVOY, LLC 224C TAMMS IL
2021-02-02 618-912-3XXX 3000–3999Assigned ONVOY, LLC 224C BRIDGEPORT IL
2021-02-02 618-919-8XXX 8000–8999Assigned ONVOY, LLC 224C FAIRFIELD IL

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.