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 715
LEVEL 3 COMMUNICATIONS, LLC - WI 216
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
2026-06-24 715-998-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WOODVILLE WI
2026-04-03 715-840-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LUCK WI
2026-01-16 715-263-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CLEAR LAKE WI
2025-02-18 715-809-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SIREN WI
2024-08-22 715-509-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BONDUEL WI
2024-06-20 715-601-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MONDOVI WI
2023-08-21 715-672-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DURAND WI
2023-07-12 715-933-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BLOOMER WI
2023-05-15 715-242-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 AMERY WI
2023-02-13 715-208-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HURLEY WI
2023-02-13 715-566-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FREDERIC WI
2023-02-13 715-661-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PARK FALLS WI
2023-02-09 715-477-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAGLERIVER WI
2023-02-09 715-706-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DRESSER WI
2022-08-02 715-899-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 POLONIA WI
2022-07-20 715-928-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BALDWIN WI
2022-06-27 715-317-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PLUM CITY WI
2022-06-27 715-402-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PEPIN WI
2022-06-27 715-448-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MAIDENROCK WI
2022-06-27 715-639-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 ELMWOOD WI
2022-06-27 715-973-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MARION WI
2022-06-15 715-987-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SPRING VLY WI
2022-06-08 715-819-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEILLSVL WI
2022-03-16 715-494-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 OSCEOLA WI
2022-03-16 715-557-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 STCROIXFLS WI
2022-02-18 715-786-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HAGER CITY WI
2022-01-25 715-789-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HARMONY WI
2022-01-25 715-900-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAU CLAIRE WI
2021-12-07 715-603-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PRESCOTT WI
2021-11-01 715-642-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CHETEK WI
2021-10-26 715-440-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MENOMONIE WI
2021-10-26 715-900-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAU CLAIRE WI
2021-09-03 715-939-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SPOONER WI
2021-04-16 715-702-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BOYCEVILLE WI
2021-03-16 715-890-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MINOCQUA WI
2021-02-24 715-388-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LCDFLAMBEU WI
2021-01-25 715-465-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MEDFORD WI
2020-12-15 715-240-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILL CREEK WI
2020-12-14 715-780-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PHILLIPS WI
2020-08-12 715-628-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 RHINELANDR WI
2020-06-24 715-319-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SUPERIOR WI
2020-06-22 715-596-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PESHTIGO WI
2020-06-22 715-699-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HAYWARD WI
2020-06-02 715-315-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WISCOSNRPD WI
2020-02-18 715-419-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CUMBERLAND WI
2019-12-17 715-863-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CLINTONVL WI
2019-10-21 715-979-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 ASHLAND WI
2019-08-21 715-475-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 RICE LAKE WI
2019-04-19 715-578-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MENOMONIE WI
2019-01-31 715-286-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 AUGUSTA WI

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.