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 989
COMCAST IP PHONE, LLC 17
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
2023-04-18 989-247-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PIGEON MI
2023-04-04 989-819-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CASEVILLE MI
2022-12-09 989-975-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BAD AXE MI
2022-09-06 989-244-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BIRCH RUN MI
2021-01-22 989-789-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MARLETTE MI
2010-10-14 989-375-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ELKTON MI
2010-10-14 989-428-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PORT HOPE MI
2010-10-14 989-479-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HARBOR BCH MI
2010-10-14 989-656-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BAY PORT MI
2010-10-14 989-658-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J UBLY MI
2010-10-14 989-665-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GAGETOWN MI
2010-10-14 989-678-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J OWENDALE MI
2010-10-14 989-704-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEBEWAING MI
2010-10-14 989-738-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PORTAUSTIN MI
2010-10-14 989-856-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CASEVILLE MI
2010-10-14 989-874-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KINDE MI
2010-09-30 989-623-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BAD AXE MI

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.