NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 801
HD CARRIER LLC 3
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
2005-10-14 801-658-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 PAYSON UT
2005-10-12 801-559-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2005-10-12 801-559-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2005-10-12 801-704-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPRINGVL UT
2005-10-12 801-704-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPRINGVL UT
2005-10-12 801-704-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPRINGVL UT
2005-10-12 801-704-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPRINGVL UT
2005-10-11 801-660-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2005-10-10 801-234-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-10-10 801-386-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-386-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-386-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-386-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-419-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-419-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-10 801-447-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FARMINGTON UT
2005-10-10 801-663-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2005-10-10 801-703-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-10-06 801-866-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2005-10-06 801-866-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2005-10-03 801-930-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 MIDVALE UT
2005-09-28 801-290-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 MURRAY UT
2005-09-23 801-717-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 PROVO UT
2005-09-23 801-821-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 MORGAN UT
2005-09-23 801-894-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 SPANIHFORK UT
2005-09-21 801-428-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SALT LAKE UT
2005-09-16 801-682-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2005-09-15 801-602-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-09-15 801-602-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-09-15 801-717-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-09-14 801-769-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 PLEASATGRV UT
2005-09-13 801-892-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MURRAY UT
2005-09-02 801-471-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2005-09-02 801-471-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2005-09-01 801-316-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 MIDVALE UT
2005-08-09 801-400-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-08-09 801-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2005-08-09 801-663-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2005-08-09 801-866-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2005-08-05 801-419-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-419-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2005-08-05 801-742-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 ALTA UT
2005-08-02 801-251-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 MIDVALE UT
2005-08-02 801-400-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2005-08-02 801-447-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 FARMINGTON 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.