NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 715
ONVOY, LLC - WI 7
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 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
2022-07-11 715-999-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-07-11 715-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-07-11 715-999-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-07-01 715-895-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EAU CLAIRE WI
2022-07-01 715-895-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EAU CLAIRE 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
2022-06-27 715-409-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MERRILL 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
2022-06-16 715-469-5XXX 5000–5999Assigned CTC TELCOM, INC. 7998 SARONA WI
2022-06-16 715-624-0XXX 0000–0999Assigned CTC TELCOM, INC. 7998 HAYWARD WI
2022-06-16 715-702-9XXX 9000–9999Assigned CTC TELCOM, INC. 7998 BOYCEVILLE WI
2022-06-16 715-731-8XXX 8000–8999Assigned CTC TELCOM, INC. 7998 SHELL LAKE WI
2022-06-16 715-957-1XXX 1000–1999Assigned CTC TELCOM, INC. 7998 STONE LAKE WI
2022-06-16 715-962-0XXX 0000–0999Assigned CTC TELCOM, INC. 7998 COLFAX WI
2022-06-16 715-979-3XXX 3000–3999Assigned CTC TELCOM, INC. 7998 ASHLAND WI
2022-06-16 715-989-0XXX 0000–0999Assigned CTC TELCOM, INC. 7998 WHEELER WI
2022-06-15 715-890-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MINOCQUA WI
2022-06-15 715-890-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MINOCQUA WI
2022-06-15 715-890-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MINOCQUA WI
2022-06-15 715-890-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MINOCQUA WI
2022-06-15 715-987-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SPRING VLY WI
2022-06-10 715-337-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAGLERIVER WI
2022-06-10 715-337-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAGLERIVER WI
2022-06-10 715-337-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAGLERIVER WI
2022-06-10 715-337-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAGLERIVER WI
2022-06-08 715-819-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEILLSVL WI
2022-06-03 715-961-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 HUDSON WI
2022-05-10 715-537-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BARRON WI
2022-04-29 715-990-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2022-04-29 715-990-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2022-04-22 715-475-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-475-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-475-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-475-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-475-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-719-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-719-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-22 715-719-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-04-20 715-417-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSCEOLA WI
2022-04-20 715-701-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 SHAWANO WI
2022-04-11 715-288-9XXX 9000–9999Assigned NTERA, LLC - WI 129J EAGLEPOINT WI
2022-03-30 715-995-7XXX 7000–7999Assigned TWILIO INTERNATIONAL, INC. 506J AUGUSTA 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
2022-03-07 715-761-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-03-07 715-914-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-03-07 715-914-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI

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.