NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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, last 30 days — NPA 401
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 4
ONVOY, LLC - RI 2
BANDWIDTH.COM CLEC, LLC - RI 2
TELNYX LLC 1
LEVEL 3 COMMUNICATIONS, LLC - RI 1
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
2011-10-07 401-346-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-07 401-346-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-07 401-346-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-07 401-346-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-07 401-830-6XXX 6000–6999Assigned METROPCS, INC. 5562 CENTREDALE RI
2011-10-07 401-830-7XXX 7000–7999Assigned METROPCS, INC. 5562 CENTREDALE RI
2011-10-07 401-830-8XXX 8000–8999Assigned METROPCS, INC. 5562 CENTREDALE RI
2011-10-05 401-209-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-10-04 401-318-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-10-04 401-318-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-10-04 401-318-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-09-30 401-426-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CUMBLND HL RI
2011-09-29 401-318-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-09-20 401-346-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-09-20 401-346-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-09-20 401-346-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-09-20 401-346-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-09-20 401-346-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-09-14 401-200-1XXX 1000–1999Assigned METROPCS, INC. 5562 BRISTOL RI
2011-09-14 401-200-2XXX 2000–2999Assigned METROPCS, INC. 5562 BRISTOL RI
2011-09-14 401-237-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F WARREN RI
2011-09-14 401-287-5XXX 5000–5999Assigned METROPCS, INC. 5562 WARWICK RI
2011-09-14 401-308-2XXX 2000–2999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2011-09-14 401-308-5XXX 5000–5999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2011-09-14 401-548-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-09-14 401-548-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-09-12 401-403-0XXX 0000–0999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-1XXX 1000–1999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-2XXX 2000–2999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-3XXX 3000–3999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-4XXX 4000–4999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-5XXX 5000–5999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-6XXX 6000–6999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-7XXX 7000–7999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-09-12 401-403-8XXX 8000–8999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-08-30 401-719-6XXX 6000–6999Assigned METROPCS, INC. 5562 CENTREDALE RI
2011-08-17 401-217-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F WGLOCESTER RI
2011-08-17 401-318-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-08-17 401-321-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F HOPEVALLEY RI
2011-08-11 401-332-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-08-11 401-332-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-08-11 401-519-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-08-10 401-250-6XXX 6000–6999Assigned METROPCS, INC. 5562 W WARWICK RI
2011-08-10 401-768-1XXX 1000–1999Assigned METROPCS, INC. 5562 WOONSOCKET RI
2011-08-09 401-340-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-08-09 401-548-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-08-09 401-548-3XXX 3000–3999Assigned METROPCS, INC. 5562 PAWTUCKET RI
2011-08-05 401-327-0XXX 0000–0999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-08-05 401-327-1XXX 1000–1999Assigned METROPCS, INC. 5562 PROVIDENCE RI
2011-08-05 401-327-2XXX 2000–2999Assigned METROPCS, INC. 5562 PROVIDENCE RI

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.