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 617
METROPCS, INC. 53
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
2024-09-20 617-977-7XXX 7000–7999Assigned METROPCS, INC. 5562 BELMONT MA
2020-08-10 617-377-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-377-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-490-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-490-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-579-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-579-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-867-3XXX 3000–3999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-867-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2012-07-03 617-322-4XXX 4000–4999Assigned METROPCS, INC. 5562 MILTON MA
2011-11-29 617-363-6XXX 6000–6999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-11-21 617-704-0XXX 0000–0999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-11-21 617-704-1XXX 1000–1999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-11-21 617-704-2XXX 2000–2999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-11-21 617-704-3XXX 3000–3999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-11-21 617-704-7XXX 7000–7999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-11-21 617-704-8XXX 8000–8999Assigned METROPCS, INC. 5562 DORCHESTER MA
2011-10-19 617-637-0XXX 0000–0999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-10-19 617-637-1XXX 1000–1999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-10-19 617-637-2XXX 2000–2999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-10-19 617-637-7XXX 7000–7999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-10-19 617-637-8XXX 8000–8999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2011-10-19 617-637-9XXX 9000–9999Assigned METROPCS, INC. 5562 JAMAICA PL MA
2007-09-21 617-756-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-3XXX 3000–3999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-4XXX 4000–4999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-8XXX 8000–8999Assigned METROPCS, INC. 5562 BOSTON MA
2006-12-19 617-932-9XXX 9000–9999Assigned METROPCS, INC. 5562 BELMONT MA
2006-07-17 617-765-5XXX 5000–5999Assigned METROPCS, INC. 5562 SO BOSTON MA
2006-02-15 617-334-3XXX 3000–3999Assigned METROPCS, INC. 5562 SO BOSTON MA
2006-02-15 617-334-4XXX 4000–4999Assigned METROPCS, INC. 5562 SO BOSTON MA
2006-01-06 617-315-5XXX 5000–5999Assigned METROPCS, INC. 5562 SO BOSTON MA
2005-10-19 617-307-8XXX 8000–8999Assigned METROPCS, INC. 5562 SO BOSTON MA
2004-08-11 617-938-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2004-08-11 617-938-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2003-09-15 617-279-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2003-09-15 617-279-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2003-09-15 617-279-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2003-09-15 617-279-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA
2003-09-15 617-279-9XXX 9000–9999Assigned METROPCS, INC. 5562 BOSTON MA
2003-08-08 617-892-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2003-08-08 617-892-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOSTON MA
2003-08-08 617-892-3XXX 3000–3999Assigned METROPCS, INC. 5562 BOSTON MA
2003-05-05 617-224-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2003-05-05 617-224-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA

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.