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
2020-04-01 618-900-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2020-04-01 618-900-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2020-04-01 618-900-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2020-03-30 618-523-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GERMANTOWN IL
2020-03-26 618-330-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KAMPSVILLE IL
2020-03-26 618-348-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HERRICK IL
2020-03-26 618-350-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MARINE IL
2020-03-26 618-358-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NEW BADEN IL
2020-03-25 618-226-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SHATTUC IL
2020-03-25 618-280-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ADDIEVILLE IL
2020-03-24 618-260-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HOYLETON IL
2020-03-23 618-326-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MULBRY GRV IL
2020-03-23 618-476-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MILLSTADT IL
2020-03-23 618-702-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LEBANON IL
2020-03-20 618-366-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KASKASKIA IL
2020-03-20 618-547-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KINMUNDY IL
2020-03-20 618-706-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BATCHTOWN IL
2020-03-20 618-765-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTELSO IL
2020-03-20 618-822-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KELL IL
2020-03-18 618-495-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HOFFMAN IL
2020-03-17 618-328-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DOW IL
2020-03-17 618-473-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HECKER IL
2020-03-17 618-507-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WOODLAWN IL
2020-03-17 618-510-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ST ELMO IL
2020-03-17 618-538-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WESTVIEW IL
2020-03-17 618-753-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHESTERBDG IL
2020-03-17 618-755-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HARMONY IL
2020-03-17 618-762-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WALTONVL IL
2020-03-17 618-892-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FARINA IL
2020-03-17 618-918-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CENTRALIA IL
2020-03-10 618-300-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARBONDALE IL
2020-03-10 618-300-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARBONDALE IL
2020-03-10 618-496-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E TAMAROA IL
2020-03-10 618-701-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLAND IL
2020-03-10 618-961-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLENCARBON IL
2020-02-17 618-230-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E EDGEMONT IL
2020-01-30 618-816-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MT VERNON IL
2020-01-26 618-262-0XXX 0000–0999Assigned ONVOY, LLC 224C MT CARMEL IL
2020-01-26 618-270-0XXX 0000–0999Assigned ONVOY, LLC 224C WAYNE CITY IL
2020-01-26 618-298-8XXX 8000–8999Assigned ONVOY, LLC 224C BELLMONT IL
2020-01-26 618-403-1XXX 1000–1999Assigned ONVOY, LLC 224C FLORA IL
2020-01-26 618-442-0XXX 0000–0999Assigned ONVOY, LLC 224C PARKERSBG IL
2020-01-26 618-455-8XXX 8000–8999Assigned ONVOY, LLC 224C WILLOWHILL IL
2020-01-26 618-456-1XXX 1000–1999Assigned ONVOY, LLC 224C WEST SALEM IL
2020-01-26 618-469-0XXX 0000–0999Assigned ONVOY, LLC 224C ROBINSON IL
2020-01-26 618-486-1XXX 1000–1999Assigned ONVOY, LLC 224C LAWRENCEVL IL
2020-01-26 618-516-8XXX 8000–8999Assigned ONVOY, LLC 224C FAIRFIELD IL
2020-01-26 618-557-0XXX 0000–0999Assigned ONVOY, LLC 224C HARDINVL IL
2020-01-26 618-563-8XXX 8000–8999Assigned ONVOY, LLC 224C HUTSONVL IL
2020-01-26 618-569-0XXX 0000–0999Assigned ONVOY, LLC 224C ANNAPOLIS 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.