NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2012-04-19 401-606-1XXX 1000–1999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-2XXX 2000–2999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-3XXX 3000–3999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-4XXX 4000–4999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-5XXX 5000–5999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-6XXX 6000–6999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-7XXX 7000–7999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-8XXX 8000–8999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-19 401-606-9XXX 9000–9999Assigned PAETEC COMMUNICATIONS, INC. - RI 4029 PROVIDENCE RI
2012-04-17 401-287-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F WARWICK RI
2012-04-04 401-234-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F GREENWICH RI
2012-03-19 401-406-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2012-03-19 401-406-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2012-03-16 401-262-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 W WARWICK RI
2012-03-16 401-921-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WARWICK RI
2012-03-07 401-867-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2012-03-05 401-601-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2012-03-05 401-601-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2012-03-05 401-601-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2012-01-23 401-266-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH RI
2012-01-23 401-340-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-340-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-340-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-340-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-340-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-612-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-612-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-612-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PROVIDENCE RI
2012-01-23 401-636-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOONSOCKET RI
2012-01-12 401-757-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CENTREDALE RI
2011-12-15 401-479-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-12-15 401-601-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-12-15 401-601-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-11-18 401-302-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-11-17 401-616-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-11-17 401-616-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-11-17 401-616-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-11-17 401-616-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-11-17 401-616-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2011-11-16 401-363-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2011-11-08 401-209-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PROVIDENCE RI
2011-11-02 401-209-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2011-10-28 401-667-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J NO KINGSTN RI
2011-10-18 401-612-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-18 401-612-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-18 401-612-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-18 401-612-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2011-10-14 401-579-1XXX 1000–1999Assigned METROPCS, INC. 5562 WOONSOCKET RI
2011-10-13 401-579-2XXX 2000–2999Assigned METROPCS, INC. 5562 WOONSOCKET RI
2011-10-13 401-579-3XXX 3000–3999Assigned METROPCS, INC. 5562 WOONSOCKET RI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.