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 479
COMCAST IP PHONE, LLC 129
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
2019-10-16 479-278-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ROGERS AR
2019-10-16 479-278-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROGERS AR
2019-07-03 479-364-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2019-04-19 479-334-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2019-04-19 479-334-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2019-03-12 479-332-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2019-03-08 479-332-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2019-03-08 479-551-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2019-03-08 479-551-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2019-02-12 479-332-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2019-01-25 479-342-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GARFIELD AR
2018-02-28 479-407-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ALMA AR
2018-01-29 479-326-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2017-12-04 479-281-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LAVACA AR
2017-12-04 479-318-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2017-11-29 479-269-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MANSFIELD AR
2017-11-29 479-294-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WEST FORK AR
2017-11-29 479-297-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MULBERRY AR
2017-11-29 479-309-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDLAND AR
2017-11-29 479-373-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SILOAM SPG AR
2017-11-29 479-400-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PRAIRIEGRV AR
2017-11-29 479-488-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PEA RIDGE AR
2017-11-29 479-500-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LINCOLN AR
2017-11-29 479-662-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MOUNTAINBG AR
2017-11-29 479-765-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WINSLOW AR
2017-11-28 479-212-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DECATUR AR
2017-11-28 479-224-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CENTERTON AR
2017-11-28 479-239-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J EUREKA SPG AR
2017-11-28 479-240-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ELKINS AR
2017-11-28 479-255-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HACKETT AR
2017-11-28 479-278-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROGERS AR
2017-11-28 479-300-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON AR
2017-11-28 479-344-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAVETTE AR
2017-11-28 479-367-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2017-11-28 479-407-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ALMA AR
2017-11-28 479-435-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2017-11-28 479-525-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GENTRY AR
2017-11-28 479-597-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD AR
2017-11-28 479-769-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2017-11-28 479-844-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ELMSPRINGS AR
2017-11-22 479-279-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J VAN BUREN AR
2017-04-26 479-367-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2017-04-26 479-373-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SILOAM SPG AR
2017-04-24 479-313-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2017-03-29 479-347-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2017-02-27 479-401-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2017-02-27 479-877-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ROGERS AR
2017-01-25 479-347-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2016-12-21 479-313-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2016-11-21 479-224-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CENTERTON AR

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.