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 681
COMCAST IP PHONE, LLC 44
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
2025-09-04 681-500-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN4 WV
2024-05-03 681-390-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MILTON WV
2023-01-04 681-466-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CHRLSTNZN2 WV
2022-09-30 681-446-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2022-09-30 681-446-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2022-09-30 681-446-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2022-09-19 681-353-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FALLNGWTRS WV
2022-09-14 681-437-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BEECHBTTOM WV
2022-06-29 681-223-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NEWCUMBRLD WV
2022-04-25 681-406-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TERRA ALTA WV
2021-09-14 681-677-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2021-09-14 681-677-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2021-09-13 681-327-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON1 WV
2020-12-10 681-540-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HARPESFRRY WV
2020-12-10 681-687-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN2 WV
2020-12-09 681-266-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KEYSER WV
2019-06-24 681-246-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J INWOOD WV
2019-02-13 681-441-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BRUCETONML WV
2018-12-20 681-252-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2018-05-22 681-247-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2017-08-18 681-353-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FALLNGWTRS WV
2017-02-23 681-247-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2016-09-09 681-378-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2016-01-14 681-888-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2015-10-22 681-258-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HEDGESVL WV
2015-08-26 681-217-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CHRLSTNZN6 WV
2015-08-17 681-252-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2015-06-18 681-204-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2015-04-01 681-260-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2015-03-05 681-242-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FALLNGWTRS WV
2015-01-16 681-328-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WEIRTON WV
2014-12-04 681-260-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2014-10-14 681-378-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2014-06-26 681-443-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FAIRMONT WV
2014-03-24 681-204-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2014-01-29 681-252-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2014-01-14 681-214-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FAIRMONT WV
2013-03-08 681-284-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BRAMWELL WV
2013-02-28 681-242-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FALLNGWTRS WV
2013-02-28 681-258-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HEDGESVL WV
2013-02-26 681-235-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SCOTTDEPOT WV
2013-02-22 681-252-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2013-02-22 681-378-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN1 WV
2012-04-12 681-404-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FAIRMONT WV

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.