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
2021-12-02 618-631-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2021-11-30 618-810-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2021-11-30 618-810-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2021-11-30 618-810-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2021-11-30 618-813-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2021-11-30 618-813-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2021-11-30 618-813-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2021-11-30 618-813-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2021-11-30 618-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2021-11-20 618-601-5XXX 5000–5999Assigned METROPCS, INC. 5562 DUPO IL
2021-11-20 618-601-6XXX 6000–6999Assigned METROPCS, INC. 5562 DUPO IL
2021-11-20 618-796-3XXX 3000–3999Assigned METROPCS, INC. 5562 ALTON IL
2021-11-20 618-796-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALTON IL
2021-11-17 618-506-9XXX 9000–9999Assigned STRATUS NETWORKS 495J HETTICK IL
2021-11-17 618-575-8XXX 8000–8999Assigned STRATUS NETWORKS 495J SEFTON IL
2021-11-17 618-705-1XXX 1000–1999Assigned STRATUS NETWORKS 495J ALBERS IL
2021-11-17 618-720-1XXX 1000–1999Assigned STRATUS NETWORKS 495J POCAHONTAS IL
2021-11-17 618-721-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BROWNSTOWN IL
2021-11-17 618-761-1XXX 1000–1999Assigned STRATUS NETWORKS 495J HOFFMAN IL
2021-11-17 618-766-9XXX 9000–9999Assigned STRATUS NETWORKS 495J IRVINGTON IL
2021-11-17 618-769-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BARTELSO IL
2021-11-10 618-545-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CENTRALIA IL
2021-11-10 618-796-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ALTON IL
2021-11-10 618-796-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ALTON IL
2021-11-08 618-388-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H OLNEY IL
2021-11-08 618-388-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OLNEY IL
2021-11-08 618-851-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ANNA IL
2021-11-04 618-298-5XXX 5000–5999Assigned ONVOY, LLC 224C BELLMONT IL
2021-11-04 618-450-3XXX 3000–3999Assigned ONVOY, LLC 224C MT CARMEL IL
2021-11-04 618-450-4XXX 4000–4999Assigned ONVOY, LLC 224C MT CARMEL IL
2021-11-04 618-738-2XXX 2000–2999Assigned ONVOY, LLC 224C ALTAMONT IL
2021-11-04 618-738-3XXX 3000–3999Assigned ONVOY, LLC 224C ALTAMONT IL
2021-11-04 618-766-2XXX 2000–2999Assigned ONVOY, LLC 224C IRVINGTON IL
2021-11-04 618-895-7XXX 7000–7999Assigned ONVOY, LLC 224C WAYNE CITY IL
2021-11-03 618-788-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ANNA IL
2021-11-03 618-788-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ANNA IL
2021-10-29 618-590-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DIX IL
2021-10-29 618-807-0XXX 0000–0999Assigned COMMIO, LLC 939H ALHAMBRA IL
2021-10-29 618-809-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MT VERNON IL
2021-10-29 618-866-6XXX 6000–6999Assigned FRACTEL, LLC 965H BELLEVILLE IL
2021-10-29 618-955-5XXX 5000–5999Assigned FRACTEL, LLC 965H ADDIEVILLE IL
2021-10-28 618-354-4XXX 4000–4999Assigned SKYE TELECOM LLC DBA SKYETEL 622J OLNEY IL
2021-10-28 618-479-2XXX 2000–2999Assigned ONVOY, LLC 224C SALEM IL
2021-10-28 618-479-6XXX 6000–6999Assigned ONVOY, LLC 224C SALEM IL
2021-10-26 618-320-3XXX 3000–3999Assigned ONVOY, LLC 224C OLNEY IL
2021-10-22 618-352-3XXX 3000–3999Assigned ONVOY, LLC 224C CENTRALIA IL
2021-10-22 618-352-4XXX 4000–4999Assigned ONVOY, LLC 224C CENTRALIA IL
2021-10-22 618-489-7XXX 7000–7999Assigned ONVOY, LLC 224C EDGEMONT IL
2021-10-22 618-642-2XXX 2000–2999Assigned ONVOY, LLC 224C GREENVILLE IL
2021-10-22 618-685-2XXX 2000–2999Assigned ONVOY, LLC 224C EDWARDSVL 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.