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
2020-01-26 618-586-8XXX 8000–8999Assigned ONVOY, LLC 224C PALESTINE IL
2020-01-26 618-676-0XXX 0000–0999Assigned ONVOY, LLC 224C CLAY CITY IL
2020-01-26 618-689-0XXX 0000–0999Assigned ONVOY, LLC 224C SAILOR SPG IL
2020-01-26 618-723-0XXX 0000–0999Assigned ONVOY, LLC 224C NOBLE IL
2020-01-26 618-752-1XXX 1000–1999Assigned ONVOY, LLC 224C WENDELIN IL
2020-01-26 618-754-1XXX 1000–1999Assigned ONVOY, LLC 224C DUNDAS IL
2020-01-26 618-793-0XXX 0000–0999Assigned ONVOY, LLC 224C ROSE HILL IL
2020-01-26 618-852-1XXX 1000–1999Assigned ONVOY, LLC 224C NEWTON IL
2020-01-26 618-863-0XXX 0000–0999Assigned ONVOY, LLC 224C CALHOUN IL
2020-01-26 618-869-0XXX 0000–0999Assigned ONVOY, LLC 224C CLAREMONT IL
2020-01-26 618-884-0XXX 0000–0999Assigned ONVOY, LLC 224C WESTPORT IL
2020-01-26 618-896-0XXX 0000–0999Assigned ONVOY, LLC 224C BURNTPRARI IL
2020-01-26 618-912-0XXX 0000–0999Assigned ONVOY, LLC 224C BRIDGEPORT IL
2020-01-26 618-928-8XXX 8000–8999Assigned ONVOY, LLC 224C BIRDS IL
2020-01-26 618-936-0XXX 0000–0999Assigned ONVOY, LLC 224C SUMNER IL
2020-01-26 618-947-0XXX 0000–0999Assigned ONVOY, LLC 224C CHAUNCEY IL
2020-01-26 618-948-0XXX 0000–0999Assigned ONVOY, LLC 224C STFRNCISVL IL
2019-12-30 618-365-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2019-12-30 618-718-7XXX 7000–7999Assigned ONVOY, LLC 224C ALBION IL
2019-12-19 618-617-6XXX 6000–6999Assigned ONVOY, LLC 224C OLNEY IL
2019-12-09 618-209-1XXX 1000–1999Assigned TELNYX LLC 073H GOLCONDA IL
2019-11-11 618-437-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E INA IL
2019-10-15 618-500-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GRANITE CY IL
2019-10-14 618-733-1XXX 1000–1999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F CARTERVL IL
2019-10-10 618-900-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2019-10-10 618-900-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2019-10-01 618-714-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MASCOUTAH IL
2019-09-25 618-217-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WOOD RIVER IL
2019-09-11 618-486-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D LAWRENCEVL IL
2019-09-06 618-491-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2019-08-29 618-470-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 COLUMBIA IL
2019-08-22 618-500-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRANITE CY IL
2019-08-12 618-268-3XXX 3000–3999Assigned ONVOY, LLC 224C RALEGHGLTI IL
2019-08-12 618-268-5XXX 5000–5999Assigned ONVOY, LLC 224C RALEGHGLTI IL
2019-08-12 618-269-5XXX 5000–5999Assigned ONVOY, LLC 224C SHAWNEETN IL
2019-08-12 618-269-8XXX 8000–8999Assigned ONVOY, LLC 224C SHAWNEETN IL
2019-08-12 618-313-7XXX 7000–7999Assigned ONVOY, LLC 224C RIDGWAY IL
2019-08-12 618-313-8XXX 8000–8999Assigned ONVOY, LLC 224C RIDGWAY IL
2019-08-12 618-342-7XXX 7000–7999Assigned ONVOY, LLC 224C VILLARIDGE IL
2019-08-12 618-342-8XXX 8000–8999Assigned ONVOY, LLC 224C VILLARIDGE IL
2019-08-12 618-361-4XXX 4000–4999Assigned ONVOY, LLC 224C PINCKNEYVL IL
2019-08-12 618-361-5XXX 5000–5999Assigned ONVOY, LLC 224C PINCKNEYVL IL
2019-08-12 618-596-1XXX 1000–1999Assigned ONVOY, LLC 224C ZEIGLER IL
2019-08-12 618-627-5XXX 5000–5999Assigned ONVOY, LLC 224C THOMPSONVL IL
2019-08-12 618-747-3XXX 3000–3999Assigned ONVOY, LLC 224C TAMMS IL
2019-08-12 618-759-7XXX 7000–7999Assigned ONVOY, LLC 224C VIENNA IL
2019-08-12 618-764-3XXX 3000–3999Assigned ONVOY, LLC 224C THEBES IL
2019-08-12 618-776-2XXX 2000–2999Assigned ONVOY, LLC 224C OLIVE BRCH IL
2019-08-12 618-777-5XXX 5000–5999Assigned ONVOY, LLC 224C STONEFORT IL
2019-08-12 618-845-7XXX 7000–7999Assigned ONVOY, LLC 224C ULLIN 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.