NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

16 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 385
LEVEL 3 COMMUNICATIONS, LLC - UT 5
BANDWIDTH.COM CLEC, LLC - UT 5
NEW CINGULAR WIRELESS PCS, LLC 4
ONVOY, LLC - UT 2
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
2026-04-03 385-604-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2026-04-03 385-618-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2026-04-02 385-614-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2026-04-02 385-614-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2026-04-02 385-614-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2026-04-02 385-614-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2026-04-02 385-629-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2026-04-02 385-629-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2026-04-02 385-629-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2026-04-02 385-835-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F OGDEN UT
2026-03-30 385-599-9XXX 9000–9999Assigned AHOI LLC 883K PAYSON UT
2026-03-26 385-738-8XXX 8000–8999Assigned AHOI LLC 883K MIDVALE UT
2026-03-02 385-629-0XXX 0000–0999Assigned WAVENATION, LLC 700J SALT LAKE UT
2026-02-25 385-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-581-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-581-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-584-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-593-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-593-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-619-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OGDEN UT
2026-02-17 385-627-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MORGAN UT
2026-02-04 385-559-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-02-04 385-624-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2026-01-28 385-993-7XXX 7000–7999Assigned METROPCS, INC. 5562 LEHI UT
2026-01-14 385-581-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-581-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-14 385-623-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-01-06 385-621-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MURRAY UT
2025-12-29 385-620-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MURRAY UT
2025-12-19 385-614-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2025-12-19 385-614-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2025-12-19 385-614-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT

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.