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
2012-11-21 385-800-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E MURRAY UT
2012-11-21 385-888-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2012-11-21 385-888-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2012-11-21 385-985-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E PROVO UT
2012-11-21 385-985-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E PROVO UT
2012-11-20 385-244-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2012-11-07 385-399-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BOUNTIFUL UT
2012-10-25 385-203-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2012-10-25 385-203-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2012-10-25 385-215-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2012-10-25 385-313-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2012-10-25 385-313-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2012-10-23 385-215-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 SALT LAKE UT
2012-10-23 385-215-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 SALT LAKE UT
2012-10-18 385-209-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F KAYSVILLE UT
2012-10-18 385-244-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 OGDEN UT
2012-10-09 385-242-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2012-10-09 385-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2012-10-09 385-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2012-09-28 385-215-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J SALT LAKE UT
2012-09-28 385-215-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SALT LAKE UT
2012-09-28 385-233-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLEASATGRV UT
2012-09-28 385-233-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLEASATGRV UT
2012-09-20 385-244-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2012-09-20 385-290-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-09-20 385-290-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-09-06 385-200-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E SPANIHFORK UT
2012-09-06 385-206-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E OGDEN UT
2012-09-06 385-209-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2012-09-06 385-233-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E PLEASATGRV UT
2012-09-06 385-336-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E LEHI UT
2012-09-06 385-393-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E CLEARFIELD UT
2012-09-06 385-399-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E BOUNTIFUL UT
2012-08-30 385-206-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F OGDEN UT
2012-08-30 385-206-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F OGDEN UT
2012-08-23 385-242-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-23 385-242-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-17 385-312-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-17 385-312-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-17 385-312-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-17 385-985-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-14 385-275-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-275-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-08-14 385-312-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2012-08-14 385-312-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F 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.