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
2021-07-14 618-884-5XXX 5000–5999Assigned ONVOY, LLC 224C WESTPORT IL
2021-07-14 618-952-3XXX 3000–3999Assigned ONVOY, LLC 224C JOHNSTONCY IL
2021-07-14 618-952-7XXX 7000–7999Assigned ONVOY, LLC 224C JOHNSTONCY IL
2021-07-14 618-982-7XXX 7000–7999Assigned ONVOY, LLC 224C PAULTON IL
2021-07-13 618-674-5XXX 5000–5999Assigned ONVOY, LLC 224C CARRIERSML IL
2021-07-13 618-867-9XXX 9000–9999Assigned ONVOY, LLC 224C DE SOTO IL
2021-06-30 618-984-4XXX 4000–4999Assigned ONVOY, LLC 224C ROYALTON IL
2021-06-29 618-738-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALTAMONT IL
2021-06-25 618-661-3XXX 3000–3999Assigned ONVOY, LLC 224C MCCLURE IL
2021-06-23 618-754-5XXX 5000–5999Assigned ONVOY, LLC 224C DUNDAS IL
2021-06-22 618-770-3XXX 3000–3999Assigned METROPCS, INC. 5562 HUTSONVL IL
2021-06-18 618-750-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2021-06-18 618-750-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2021-06-15 618-716-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E TRENTON IL
2021-06-09 618-270-4XXX 4000–4999Assigned ONVOY, LLC 224C WAYNE CITY IL
2021-06-09 618-278-7XXX 7000–7999Assigned ONVOY, LLC 224C WOODBURN IL
2021-06-09 618-298-3XXX 3000–3999Assigned ONVOY, LLC 224C BELLMONT IL
2021-06-09 618-502-2XXX 2000–2999Assigned ONVOY, LLC 224C FIELDON IL
2021-06-09 618-574-8XXX 8000–8999Assigned ONVOY, LLC 224C AVISTON IL
2021-06-09 618-705-5XXX 5000–5999Assigned ONVOY, LLC 224C ALBERS IL
2021-06-09 618-721-2XXX 2000–2999Assigned ONVOY, LLC 224C BROWNSTOWN IL
2021-06-08 618-568-7XXX 7000–7999Assigned ONVOY, LLC 224C ELKVILLE IL
2021-06-04 618-280-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ADDIEVILLE IL
2021-06-04 618-408-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BECKEMEYER IL
2021-06-04 618-415-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BEECHER CY IL
2021-06-04 618-574-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H AVISTON IL
2021-06-04 618-636-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ALTON IL
2021-06-04 618-682-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CENTRALIA IL
2021-06-04 618-881-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ALTAMONT IL
2021-06-02 618-705-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALBERS IL
2021-06-02 618-720-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E POCAHONTAS IL
2021-06-02 618-721-0XXX 0000–0999Assigned TELNYX LLC 073H BROWNSTOWN IL
2021-06-02 618-725-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANDALIA IL
2021-06-02 618-725-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANDALIA IL
2021-06-02 618-737-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 618-737-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-05-18 618-389-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ASHLEY IL
2021-05-18 618-598-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E OKAWVILLE IL
2021-05-18 618-679-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MCCLURE IL
2021-05-18 618-680-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E O FALLON IL
2021-05-18 618-680-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E O FALLON IL
2021-05-10 618-679-7XXX 7000–7999Assigned ONVOY, LLC 224C MCCLURE IL
2021-05-10 618-871-7XXX 7000–7999Assigned ONVOY, LLC 224C ALLENDALE IL
2021-05-04 618-682-2XXX 2000–2999Assigned 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.