NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 385
COMCAST IP PHONE, LLC 98
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
2026-02-17 385-627-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MORGAN UT
2023-12-10 385-946-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J EAGLE MTN UT
2023-09-28 385-534-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2023-09-28 385-554-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2022-06-03 385-832-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J AMERCNFORK UT
2022-06-03 385-832-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J AMERCNFORK UT
2022-06-03 385-837-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2022-06-03 385-865-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2022-06-03 385-899-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PAYSON UT
2020-10-06 385-361-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-10-06 385-361-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-10-06 385-361-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-10-06 385-361-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-10-06 385-361-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-10-06 385-993-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J LEHI UT
2020-10-05 385-432-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2020-08-12 385-346-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-03-12 385-318-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MURRAY UT
2020-02-12 385-342-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2020-01-29 385-342-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2019-07-11 385-308-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2019-07-03 385-344-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SPANIHFORK UT
2019-06-05 385-324-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BOUNTIFUL UT
2019-06-05 385-381-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON UT
2019-04-10 385-387-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J AMERCNFORK UT
2019-03-21 385-500-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2019-03-21 385-500-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2019-03-08 385-296-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2019-03-01 385-301-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2019-02-20 385-287-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LEHI UT
2018-10-03 385-281-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2018-09-12 385-420-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2018-09-12 385-425-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MURRAY UT
2018-07-31 385-492-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2018-07-31 385-492-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2018-07-17 385-270-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2018-02-16 385-787-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2018-01-08 385-522-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2017-12-14 385-465-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2017-05-18 385-274-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2017-05-01 385-274-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDVALE UT
2017-01-03 385-423-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CLEARFIELD UT
2016-12-01 385-261-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2016-11-16 385-449-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ALTA UT
2016-08-04 385-289-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OGDEN UT
2016-07-26 385-267-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2016-06-28 385-262-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J KAYSVILLE UT
2016-04-14 385-549-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2016-03-04 385-388-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MURRAY UT
2016-02-03 385-557-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J 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.