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
2019-03-01 385-302-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-03-01 385-302-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-03-01 385-302-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-03-01 385-302-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-02-27 385-387-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 AMERCNFORK UT
2019-02-26 385-400-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J OGDEN UT
2019-02-21 385-300-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 BOUNTIFUL UT
2019-02-21 385-300-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 BOUNTIFUL UT
2019-02-21 385-300-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 BOUNTIFUL UT
2019-02-21 385-337-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-02-21 385-387-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-02-21 385-387-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-02-20 385-287-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LEHI UT
2019-02-19 385-276-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2019-02-19 385-276-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2019-02-19 385-276-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2019-02-13 385-294-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2019-02-13 385-600-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2019-02-13 385-600-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2019-02-12 385-292-5XXX 5000–5999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H PROVO UT
2019-02-11 385-294-0XXX 0000–0999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H OGDEN UT
2019-02-11 385-367-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F CLEARFIELD UT
2019-02-11 385-367-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F CLEARFIELD UT
2019-02-11 385-367-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F CLEARFIELD UT
2019-02-11 385-367-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F CLEARFIELD UT
2019-02-11 385-381-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F FARMINGTON UT
2019-02-11 385-381-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F FARMINGTON UT
2019-02-11 385-381-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F FARMINGTON UT
2019-02-11 385-381-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F FARMINGTON UT
2019-02-11 385-381-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F FARMINGTON UT
2019-02-11 385-423-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F CLEARFIELD UT
2019-02-08 385-287-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LEHI UT
2019-02-08 385-422-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 PAYSON UT
2019-02-08 385-422-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 PAYSON UT
2019-02-08 385-422-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - UT 7530 PAYSON UT
2019-02-04 385-301-1XXX 1000–1999Assigned METROPCS, INC. 5562 SALT LAKE UT
2019-02-04 385-301-9XXX 9000–9999Assigned METROPCS, INC. 5562 SALT LAKE UT
2019-01-28 385-387-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-01-28 385-387-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-01-25 385-500-0XXX 0000–0999Assigned FRACTEL, LLC 965H SALT LAKE UT
2019-01-25 385-500-5XXX 5000–5999Assigned FRACTEL, LLC 965H SALT LAKE UT
2019-01-25 385-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H OGDEN UT
2019-01-23 385-276-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-01-23 385-276-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-01-23 385-276-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-01-22 385-293-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-01-22 385-293-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-01-22 385-293-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-01-14 385-320-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2019-01-14 385-320-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE 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.