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
2022-02-25 618-387-9XXX 9000–9999Assigned TELNYX LLC 073H CARMI IL
2022-02-25 618-813-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CENTRALIA IL
2022-02-24 618-866-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-02-23 618-358-2XXX 2000–2999Assigned METROPCS, INC. 5562 NEW BADEN IL
2022-02-23 618-473-0XXX 0000–0999Assigned METROPCS, INC. 5562 HECKER IL
2022-02-23 618-705-3XXX 3000–3999Assigned METROPCS, INC. 5562 ALBERS IL
2022-02-23 618-769-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTELSO IL
2022-02-18 618-819-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BATCHTOWN IL
2022-02-18 618-820-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BUNKERHILL IL
2022-02-06 618-601-3XXX 3000–3999Assigned METROPCS, INC. 5562 DUPO IL
2022-02-06 618-601-8XXX 8000–8999Assigned METROPCS, INC. 5562 DUPO IL
2022-02-06 618-815-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 E ST LOUIS IL
2022-02-06 618-874-5XXX 5000–5999Assigned METROPCS, INC. 5562 E ST LOUIS IL
2022-02-01 618-818-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALTON IL
2022-02-01 618-818-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALTON IL
2022-02-01 618-819-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BATCHTOWN IL
2022-02-01 618-820-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BUNKERHILL IL
2022-01-24 618-631-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2022-01-14 618-810-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-01-14 618-810-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-01-14 618-810-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-01-14 618-810-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-01-14 618-810-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERRIN IL
2022-01-13 618-769-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTELSO IL
2022-01-09 618-470-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J COLUMBIA IL
2022-01-09 618-522-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 METROPOLIS IL
2022-01-09 618-522-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 METROPOLIS IL
2022-01-07 618-680-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J O FALLON IL
2022-01-04 618-796-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALTON IL
2021-12-30 618-814-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EWING IL
2021-12-30 618-815-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J E ST LOUIS IL
2021-12-30 618-817-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-30 618-817-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2021-12-14 618-440-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MARION IL
2021-12-14 618-440-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARION IL
2021-12-14 618-440-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARION IL
2021-12-14 618-440-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARION IL
2021-12-06 618-714-2XXX 2000–2999Assigned METROPCS, INC. 5562 MASCOUTAH IL
2021-12-06 618-813-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CENTRALIA IL
2021-12-06 618-813-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CENTRALIA IL
2021-12-02 618-631-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2021-12-02 618-631-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL 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.