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
2022-11-17 618-342-5XXX 5000–5999Assigned ONVOY, LLC 224C VILLARIDGE IL
2022-11-16 618-870-1XXX 1000–1999Assigned COMMIO, LLC 939H BETHALTO IL
2022-11-15 618-668-9XXX 9000–9999Assigned ONVOY, LLC 224C GOLCONDA IL
2022-11-14 618-636-3XXX 3000–3999Assigned COMMIO, LLC 939H ALTON IL
2022-11-14 618-666-5XXX 5000–5999Assigned COMMIO, LLC 939H COLLINSVL IL
2022-11-10 618-674-7XXX 7000–7999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F CARRIERSML IL
2022-11-10 618-777-4XXX 4000–4999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F STONEFORT IL
2022-11-10 618-982-6XXX 6000–6999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F PAULTON IL
2022-11-08 618-885-3XXX 3000–3999Assigned ONVOY, LLC 224C DOW IL
2022-11-08 618-901-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CARBONDALE IL
2022-11-07 618-617-0XXX 0000–0999Assigned ONVOY, LLC 224C OLNEY IL
2022-11-04 618-298-6XXX 6000–6999Assigned ONVOY, LLC 224C BELLMONT IL
2022-11-03 618-864-1XXX 1000–1999Assigned TELNYX LLC 073H HARRISBURG IL
2022-11-02 618-366-5XXX 5000–5999Assigned COMMIO, LLC 939H KASKASKIA IL
2022-11-01 618-880-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NASHVILLE IL
2022-10-21 618-331-7XXX 7000–7999Assigned ONVOY, LLC 224C CARBONDALE IL
2022-10-21 618-331-8XXX 8000–8999Assigned ONVOY, LLC 224C CARBONDALE IL
2022-10-20 618-721-4XXX 4000–4999Assigned METROPCS, INC. 5562 BROWNSTOWN IL
2022-10-20 618-739-1XXX 1000–1999Assigned METROPCS, INC. 5562 BROOKPORT IL
2022-10-19 618-638-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2022-10-19 618-718-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ALBION IL
2022-10-19 618-750-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-10-19 618-900-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-10-19 618-900-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-10-12 618-714-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MASCOUTAH IL
2022-10-10 618-873-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BELLEVILLE IL
2022-10-10 618-890-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J FREEBURG IL
2022-10-10 618-894-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAFTON IL
2022-10-04 618-418-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BELLEVILLE IL
2022-10-04 618-866-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BELLEVILLE IL
2022-09-22 618-860-6XXX 6000–6999Assigned ONVOY, LLC 224C GERMANTOWN IL
2022-09-15 618-404-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HIGHLAND IL
2022-09-13 618-561-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-13 618-561-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-13 618-561-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-13 618-561-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-13 618-561-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-13 618-561-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2022-09-09 618-864-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HARRISBURG IL
2022-09-09 618-865-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LIVINGSTON IL
2022-09-09 618-868-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PRAIRIETN IL
2022-09-09 618-870-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BETHALTO IL
2022-09-07 618-612-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2022-09-01 618-217-4XXX 4000–4999Assigned TELNYX LLC 073H WOOD RIVER IL
2022-08-31 618-404-2XXX 2000–2999Assigned ONVOY, LLC 224C HIGHLAND IL
2022-08-31 618-404-3XXX 3000–3999Assigned ONVOY, LLC 224C HIGHLAND IL
2022-08-31 618-590-8XXX 8000–8999Assigned TELNYX LLC 073H DIX IL
2022-08-31 618-886-7XXX 7000–7999Assigned ONVOY, LLC 224C TROY IL
2022-08-30 618-733-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CARTERVL IL
2022-08-30 618-849-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN 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.