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
2007-06-25 801-505-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SALT LAKE UT
2007-06-25 801-505-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SALT LAKE UT
2007-06-25 801-512-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-25 801-512-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-25 801-512-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-25 801-512-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-25 801-512-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-25 801-512-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-06-20 801-615-7XXX 7000–7999Assigned FIRSTDIGITAL COMMUNICATIONS, LLC 716D PROVO UT
2007-06-19 801-503-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SALT LAKE UT
2007-06-15 801-678-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2007-06-15 801-678-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2007-06-15 801-822-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2007-06-15 801-822-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2007-06-15 801-822-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2007-06-15 801-822-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2007-06-07 801-833-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 SALT LAKE UT
2007-05-23 801-617-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2007-05-23 801-617-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2007-05-23 801-617-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2007-05-23 801-675-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2007-05-23 801-822-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E PROVO UT
2007-05-23 801-845-8XXX 8000–8999Assigned METROPCS, INC. 5562 MORGAN UT
2007-05-21 801-312-1XXX 1000–1999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 MURRAY UT
2007-05-21 801-507-8XXX 8000–8999Assigned QWEST CORPORATION 9636 MURRAY UT
2007-05-21 801-507-9XXX 9000–9999Assigned QWEST CORPORATION 9636 MURRAY UT
2007-05-21 801-783-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-05-21 801-931-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-05-21 801-931-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-05-21 801-931-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-05-10 801-931-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALT LAKE UT
2007-05-10 801-931-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALT LAKE UT
2007-05-10 801-931-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALT LAKE UT
2007-05-10 801-931-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALT LAKE UT
2007-05-07 801-669-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2007-05-07 801-678-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2007-05-03 801-738-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2007-05-03 801-738-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2007-05-03 801-738-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2007-05-03 801-793-1XXX 1000–1999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-2XXX 2000–2999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-3XXX 3000–3999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-4XXX 4000–4999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-5XXX 5000–5999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-6XXX 6000–6999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-793-9XXX 9000–9999Assigned METROPCS, INC. 5562 SALT LAKE UT
2007-05-03 801-931-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2007-05-03 801-931-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2007-04-19 801-727-0XXX 0000–0999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 MIDVALE UT
2007-04-19 801-727-1XXX 1000–1999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 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.