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 276
COMCAST IP PHONE, LLC 60
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
2024-04-02 276-261-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HILLSVILLE VA
2023-05-24 276-653-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PENINGTNGP VA
2023-04-13 276-332-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SALTVILLE VA
2022-06-28 276-746-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J RIDGEWAY VA
2021-08-19 276-257-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BIGSTONEGP VA
2021-08-19 276-257-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BIGSTONEGP VA
2020-12-08 276-646-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CHILHOWIE VA
2020-05-26 276-288-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WOOLWINE VA
2020-05-12 276-693-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J STUART VA
2018-10-10 276-245-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLUEFIELD VA
2018-04-20 276-352-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J COLLINSVL VA
2016-08-01 276-201-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MARTINSVL VA
2015-10-29 276-706-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MARION VA
2015-09-04 276-525-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ABINGDON VA
2015-08-20 276-421-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BASSETT VA
2015-08-03 276-302-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CLINTWOOD VA
2015-07-15 276-455-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J COEBURN VA
2015-04-03 276-325-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NORTON VA
2015-03-11 276-601-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GALAX VA
2014-11-05 276-533-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WISE VA
2014-08-12 276-928-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROCKY GAP VA
2014-01-16 276-524-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BIGSTONEGP VA
2014-01-13 276-322-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BLUEFIELD VA
2013-07-22 276-336-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARTINSVL VA
2013-06-18 276-790-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MARTINSVL VA
2013-03-01 276-945-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J POCAHONTAS VA
2013-02-26 276-329-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J TAZEWELL VA
2012-02-09 276-378-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MARION VA
2012-02-07 276-292-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J RIDGEWAY VA
2012-02-07 276-421-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BASSETT VA
2012-02-07 276-833-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J AXTON VA
2012-02-01 276-336-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MARTINSVL VA
2012-02-01 276-622-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J COLLINSVL VA
2012-02-01 276-681-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FIELDALE VA
2012-02-01 276-934-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SPENCER VA
2011-10-05 276-258-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ABINGDON VA
2011-03-31 276-475-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DAMASCUS VA
2010-09-16 276-766-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SYLVATUS VA
2010-03-08 276-346-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JONESVILLE VA
2009-05-18 276-266-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HILLSVILLE VA
2009-05-18 276-601-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GALAX VA
2009-05-18 276-768-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J INDEPNDNCE VA
2009-04-30 276-318-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PENINGTNGP VA
2009-04-30 276-325-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J NORTON VA
2009-04-24 276-321-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WISE VA
2009-04-24 276-383-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ST CHARLES VA
2009-04-24 276-524-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BIGSTONEGP VA
2009-04-24 276-565-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J APPALACHIA VA
2009-04-24 276-796-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J POUND VA
2009-04-24 276-807-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J COEBURN VA

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.