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 774
COMCAST IP PHONE, LLC 182
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
2024-02-02 774-351-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WORCESTER MA
2023-06-15 774-306-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NO ATTLEBO MA
2023-06-15 774-647-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J NO ATTLEBO MA
2023-06-15 774-647-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J NO ATTLEBO MA
2023-06-09 774-468-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J REHOBOTH MA
2023-05-18 774-485-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J NANTUCKET MA
2023-05-18 774-485-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NANTUCKET MA
2023-03-28 774-391-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WALPOLE MA
2023-03-28 774-391-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WALPOLE MA
2023-02-06 774-395-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER MA
2023-02-06 774-395-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER MA
2022-10-05 774-677-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ATTLEBORO MA
2022-10-05 774-677-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ATTLEBORO MA
2022-10-05 774-677-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ATTLEBORO MA
2022-09-27 774-349-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FALMOUTH MA
2022-09-27 774-349-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FALMOUTH MA
2022-09-27 774-557-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BUZZARDSBY MA
2022-09-27 774-557-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BUZZARDSBY MA
2022-06-28 774-663-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CARVER MA
2022-06-28 774-684-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ORLEANS MA
2022-06-28 774-684-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ORLEANS MA
2022-06-28 774-784-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CHILMARK MA
2022-06-28 774-822-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2022-06-28 774-822-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2022-06-28 774-822-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2022-06-28 774-822-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2022-06-27 774-779-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MARION MA
2021-08-18 774-448-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MILFORD MA
2021-08-18 774-448-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MILFORD MA
2021-08-18 774-733-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DENNIS MA
2021-08-18 774-733-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DENNIS MA
2021-08-17 774-871-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J OSTERVILLE MA
2021-08-17 774-871-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OSTERVILLE MA
2021-08-04 774-349-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FALMOUTH MA
2020-12-11 774-372-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MANSFIELD MA
2020-12-11 774-372-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MANSFIELD MA
2020-08-12 774-428-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BROCKTON MA
2020-03-20 774-426-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MA
2020-01-15 774-422-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BROCKTON MA
2019-08-26 774-363-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SAGAMORE MA
2019-06-05 774-358-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HARWICH MA
2019-02-28 774-552-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2019-02-28 774-608-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MA
2019-02-18 774-379-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FALL RIVER MA
2019-02-08 774-500-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DIGHTON MA
2018-10-30 774-373-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MIDDLEBORO MA
2018-10-30 774-552-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2018-10-30 774-770-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NEWBEDFORD MA
2018-08-30 774-510-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NEWBEDFORD MA
2018-08-24 774-602-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OSTERVILLE MA

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.