NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

13 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 730
NEW CINGULAR WIRELESS PCS, LLC - IL 11
VERSATEL LLC 1
OPENTACT INC. 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
2024-01-22 730-232-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CENTRALIA IL
2024-01-19 730-230-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALTON IL
2024-01-12 730-200-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C KASKASKIA IL
2024-01-10 730-226-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2024-01-10 730-228-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2024-01-10 730-228-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2024-01-10 730-228-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2024-01-10 730-228-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2024-01-10 730-228-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2024-01-10 730-232-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-232-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2024-01-10 730-233-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCCLURE IL
2024-01-10 730-233-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCCLURE IL
2024-01-05 730-231-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 E ST LOUIS IL
2024-01-05 730-231-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 E ST LOUIS IL
2023-12-22 730-228-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2023-12-22 730-228-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2023-12-22 730-228-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2023-12-22 730-228-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2023-12-21 730-222-7XXX 7000–7999Assigned ONVOY, LLC 224C DE SOTO IL
2023-12-21 730-222-8XXX 8000–8999Assigned ONVOY, LLC 224C DE SOTO IL
2023-12-21 730-225-3XXX 3000–3999Assigned ONVOY, LLC 224C CAIRO IL
2023-12-21 730-225-4XXX 4000–4999Assigned ONVOY, LLC 224C CAIRO IL
2023-12-15 730-221-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BROOKPORT IL
2023-12-15 730-230-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALTON IL
2023-12-15 730-230-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALTON IL
2023-11-13 730-227-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CENTRALIA IL
2023-11-13 730-228-1XXX 1000–1999Assigned IP HORIZON LLC 515J OLNEY IL
2023-10-31 730-223-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GOREVILLE IL
2023-10-13 730-227-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-13 730-227-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2023-10-12 730-226-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2023-10-12 730-226-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2023-10-06 730-225-1XXX 1000–1999Assigned CALLWORKS CORPORATION 475J CAIRO IL
2023-09-28 730-221-0XXX 0000–0999Assigned COMMIO, LLC 939H BROOKPORT IL
2023-09-28 730-221-1XXX 1000–1999Assigned COMMIO, LLC 939H BROOKPORT IL
2023-09-28 730-221-2XXX 2000–2999Assigned COMMIO, LLC 939H BROOKPORT IL
2023-09-28 730-221-3XXX 3000–3999Assigned COMMIO, LLC 939H BROOKPORT IL
2023-09-28 730-221-4XXX 4000–4999Assigned COMMIO, LLC 939H BROOKPORT IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.