NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 779
COMCAST IP PHONE, LLC 59
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
2026-02-04 779-837-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ELWOOD IL
2026-01-28 779-443-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRANDDTOUR IL
2023-01-12 779-426-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MANHATTAN IL
2022-04-13 779-356-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL
2022-04-13 779-356-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL
2020-11-24 779-270-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DE KALB IL
2020-11-19 779-251-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DIXON IL
2020-11-19 779-297-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J STERLING IL
2020-02-28 779-970-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2020-02-17 779-900-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FRANKFORT IL
2020-02-12 779-223-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ONARGA IL
2019-10-23 779-247-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WOODSTOCK IL
2019-05-22 779-244-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2019-03-20 779-244-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2018-10-24 779-256-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2017-11-15 779-244-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2017-10-25 779-242-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JOLIET IL
2017-03-20 779-803-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEW LENOX IL
2016-09-07 779-210-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2016-06-28 779-252-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2016-03-16 779-704-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2015-09-04 779-254-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FRANKFORT IL
2015-09-03 779-552-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BELVIDERE IL
2015-07-20 779-429-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WILMINGTON IL
2015-07-15 779-245-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STERLING IL
2015-06-26 779-994-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL
2015-06-24 779-234-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2015-05-19 779-701-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J KANKAKEE IL
2015-04-10 779-368-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEWMILFORD IL
2015-02-12 779-529-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MANTENO IL
2014-08-15 779-222-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SYCAMORE IL
2014-08-12 779-704-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2014-07-03 779-333-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FRANKFORT IL
2014-06-10 779-777-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DE KALB IL
2014-05-06 779-201-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LA SALLE IL
2014-03-24 779-803-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NEW LENOX IL
2014-02-20 779-234-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2014-01-29 779-994-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL
2013-08-15 779-206-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J JOLIET IL
2013-08-15 779-210-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2013-06-17 779-206-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JOLIET IL
2013-06-05 779-774-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2013-06-05 779-774-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2013-05-08 779-205-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J JOLIET IL
2013-04-25 779-210-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2013-04-25 779-210-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2013-01-24 779-774-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2012-12-17 779-220-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL
2012-09-28 779-444-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WONDERLAKE IL
2012-08-20 779-220-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CRYSTAL LK IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.