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
2022-01-28 385-460-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-28 385-460-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-27 385-456-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-456-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2022-01-27 385-457-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-457-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-01-27 385-472-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J PROVO UT
2022-01-27 385-563-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J SALT LAKE UT
2022-01-27 385-566-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J KAYSVILLE UT
2022-01-27 385-865-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J OGDEN UT
2022-01-26 385-403-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H FARMINGTON UT
2022-01-25 385-454-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2022-01-25 385-454-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2022-01-25 385-454-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2022-01-25 385-454-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2022-01-25 385-454-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2022-01-25 385-459-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-25 385-459-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2022-01-24 385-453-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2022-01-14 385-452-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO 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.