NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 618
BOOST SUBSCRIBERCO L.L.C. 39
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
2023-10-31 618-200-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BENTON IL
2023-10-31 618-679-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MCCLURE IL
2023-10-31 618-851-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ANNA IL
2023-07-07 618-712-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J THEBES IL
2023-05-30 618-956-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CARTERVL IL
2023-01-31 618-834-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BRIGHTON IL
2023-01-31 618-873-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BELLEVILLE IL
2023-01-31 618-886-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J TROY IL
2023-01-11 618-909-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BREESE IL
2022-12-08 618-903-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DORCHESTER IL
2022-12-08 618-904-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BALDWIN 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
2022-09-09 618-865-9XXX 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
2022-08-09 618-858-0XXX 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
2022-08-02 618-350-1XXX 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
2022-01-09 618-470-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J COLUMBIA IL
2022-01-07 618-680-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J O FALLON IL
2021-12-30 618-815-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J E ST LOUIS 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.