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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-06-05 385-296-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-06-05 385-296-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-06-05 385-296-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-06-05 385-296-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-06-05 385-296-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MIDVALE UT
2019-06-05 385-304-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E AMERCNFORK UT
2019-06-05 385-304-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E AMERCNFORK UT
2019-06-05 385-314-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-06-05 385-314-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-06-05 385-324-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BOUNTIFUL UT
2019-06-05 385-327-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E SPRINGVL UT
2019-06-05 385-327-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E SPRINGVL UT
2019-06-05 385-330-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E PLEASATGRV UT
2019-06-05 385-330-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E PLEASATGRV UT
2019-06-05 385-381-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E FARMINGTON UT
2019-06-05 385-381-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON UT
2019-06-05 385-381-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E FARMINGTON UT
2019-06-05 385-437-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E SPANIHFORK UT
2019-06-05 385-485-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E MURRAY UT
2019-06-05 385-485-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E MURRAY UT
2019-06-05 385-492-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E OGDEN UT
2019-06-05 385-492-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E OGDEN UT
2019-06-04 385-314-0XXX 0000–0999Assigned METROPCS, INC. 5562 PROVO UT
2019-06-04 385-314-9XXX 9000–9999Assigned METROPCS, INC. 5562 PROVO UT
2019-06-04 385-421-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E ALTA UT
2019-06-04 385-421-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E ALTA UT
2019-05-30 385-332-5XXX 5000–5999Assigned FIRSTDIGITAL COMMUNICATIONS, LLC 716D KAYSVILLE UT
2019-05-29 385-287-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LEHI UT
2019-05-28 385-479-3XXX 3000–3999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H SALT LAKE UT
2019-05-28 385-485-0XXX 0000–0999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H MURRAY UT
2019-05-24 385-296-0XXX 0000–0999Assigned FIRSTDIGITAL COMMUNICATIONS, LLC 716D MIDVALE UT
2019-05-24 385-304-0XXX 0000–0999Assigned FIRSTDIGITAL COMMUNICATIONS, LLC 716D AMERCNFORK UT
2019-05-24 385-330-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PLEASATGRV UT
2019-05-24 385-330-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PLEASATGRV UT
2019-05-24 385-330-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PLEASATGRV UT
2019-05-22 385-421-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 ALTA UT
2019-05-21 385-500-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-05-21 385-500-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-05-21 385-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-05-20 385-273-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PLEASATGRV UT
2019-05-20 385-292-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-292-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-292-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-292-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-300-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F BOUNTIFUL UT
2019-05-20 385-450-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-497-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2019-05-20 385-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2019-05-20 385-500-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT
2019-05-20 385-666-9XXX 9000–9999Assigned 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.