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 360
COMCAST IP PHONE, LLC 223
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
2023-04-07 360-495-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ELMA WA
2023-04-07 360-495-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ELMA WA
2022-08-23 360-655-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J EATONVILLE WA
2022-06-17 360-401-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SHELTON WA
2022-06-17 360-557-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHEHALIS WA
2022-06-17 360-897-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SO PRAIRIE WA
2021-09-13 360-217-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2021-09-13 360-217-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2020-10-21 360-995-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-21 360-995-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-21 360-995-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-02 360-360-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-526-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-526-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-526-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-729-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-812-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-812-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-09-24 360-722-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2020-09-24 360-722-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2020-08-18 360-743-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ABERDEEN WA
2020-08-14 360-360-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-07-09 360-517-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2020-07-09 360-517-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2020-07-09 360-517-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2020-07-09 360-517-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2020-03-24 360-995-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-03-12 360-404-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2020-03-12 360-684-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-03-05 360-743-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ABERDEEN WA
2019-12-20 360-946-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2019-10-07 360-422-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2019-06-05 360-543-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2019-05-17 360-764-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2019-01-29 360-938-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WOODLAND WA
2018-11-26 360-787-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2018-09-07 360-764-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2018-05-22 360-309-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2018-05-22 360-404-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2018-02-16 360-726-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2018-02-09 360-309-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2017-12-27 360-706-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2017-02-03 360-309-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2017-02-03 360-309-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2017-02-03 360-309-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2017-02-03 360-309-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2017-02-03 360-309-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA

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.