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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-08-30 618-849-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-08-30 618-850-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-08-30 618-850-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-08-30 618-850-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-08-29 618-646-4XXX 4000–4999Assigned COMMIO, LLC 939H E ST LOUIS IL
2022-08-29 618-831-0XXX 0000–0999Assigned COMMIO, LLC 939H EDWARDSVL IL
2022-08-23 618-750-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-08-23 618-750-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-08-22 618-429-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2022-08-22 618-429-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2022-08-22 618-429-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2022-08-22 618-429-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2022-08-22 618-429-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2022-08-09 618-856-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-856-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-08-09 618-858-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AVISTON IL
2022-08-09 618-860-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GERMANTOWN IL
2022-08-09 618-862-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ST LIBORY IL
2022-08-08 618-537-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LEBANON IL
2022-08-08 618-850-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J HERRIN IL
2022-08-04 618-664-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J GREENVILLE IL
2022-08-02 618-350-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MARINE IL
2022-08-02 618-370-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MEDORA IL
2022-08-02 618-582-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J NEW ATHENS IL
2022-08-02 618-598-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J OKAWVILLE IL
2022-08-02 618-640-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ST JACOB IL
2022-08-02 618-716-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J TRENTON IL
2022-08-02 618-832-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J JERSEYVL IL
2022-08-02 618-989-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WOOD RIVER IL
2022-08-01 618-213-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J EDGEMONT IL
2022-08-01 618-585-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BUNKERHILL IL
2022-08-01 618-666-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J COLLINSVL IL
2022-08-01 618-685-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J EDWARDSVL IL
2022-08-01 618-807-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ALHAMBRA IL
2022-08-01 618-818-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ALTON IL
2022-08-01 618-819-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BATCHTOWN IL
2022-08-01 618-872-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GLENCARBON IL
2022-07-26 618-866-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-07-26 618-866-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-07-26 618-866-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-07-21 618-848-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2022-07-21 618-848-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA 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.