NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 413
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6
BANDWIDTH.COM CLEC, LLC - MA 5
NEW CINGULAR WIRELESS PCS, LLC - DC 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 1
AHOI LLC 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
2007-02-26 413-387-2XXX 2000–2999Assigned METROPCS, INC. 5562 NORTHAMPTN MA
2007-02-26 413-824-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 GREENFIELD MA
2007-02-23 413-328-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2007-02-20 413-548-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHRSTFKLN MA
2007-02-20 413-548-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHRSTFKLN MA
2007-02-13 413-277-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 7103 WARE MA
2007-02-12 413-275-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLYOKE MA
2007-02-12 413-459-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2007-02-09 413-207-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HUNTINGTON MA
2007-02-07 413-203-8XXX 8000–8999Assigned IP HORIZON LLC 515J EASTHAMPTN MA
2007-02-07 413-277-1XXX 1000–1999Assigned IP HORIZON LLC 515J WARE MA
2007-02-07 413-325-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GREENFIELD MA
2007-02-07 413-961-1XXX 1000–1999Assigned IP HORIZON LLC 515J WORTHINGTN MA
2007-01-31 413-328-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2007-01-19 413-931-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J STOCKBDG MA
2007-01-12 413-459-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2007-01-11 413-212-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSFIELD MA
2007-01-11 413-485-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WESTFIELD MA
2007-01-04 413-327-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LEE MA
2007-01-04 413-351-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2007-01-04 413-485-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTFIELD MA
2007-01-04 413-663-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORTHADAMS MA
2007-01-04 413-887-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HOLYOKE MA
2006-12-21 413-273-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2006-12-15 413-397-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SO DEERFLD MA
2006-12-14 413-275-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLYOKE MA
2006-12-14 413-328-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2006-12-14 413-328-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2006-12-13 413-242-8XXX 8000–8999Assigned METROPCS, INC. 5562 PITTSFIELD MA
2006-12-08 413-386-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2006-12-05 413-273-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2006-12-05 413-977-0XXX 0000–0999Assigned METROPCS, INC. 5562 WESTFIELD MA
2006-12-05 413-977-7XXX 7000–7999Assigned METROPCS, INC. 5562 WESTFIELD MA
2006-12-01 413-977-4XXX 4000–4999Assigned METROPCS, INC. 5562 WESTFIELD MA
2006-11-16 413-315-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLYOKE MA
2006-11-14 413-252-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BELCHERTN MA
2006-11-10 413-657-0XXX 0000–0999Assigned METROPCS, INC. 5562 SPRINGFLD MA
2006-11-10 413-657-2XXX 2000–2999Assigned METROPCS, INC. 5562 SPRINGFLD MA
2006-11-07 413-426-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2006-11-07 413-717-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GREATBNGTN MA
2006-11-07 413-813-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARE MA
2006-11-07 413-887-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HOLYOKE MA
2006-11-01 413-559-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHRSTFKLN MA
2006-11-01 413-559-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHRSTFKLN MA
2006-10-19 413-727-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NORTHAMPTN MA
2006-10-16 413-363-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SPRINGFLD MA
2006-10-16 413-363-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SPRINGFLD MA
2006-10-12 413-207-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HUNTINGTON MA
2006-10-12 413-273-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SPRINGFLD MA
2006-10-12 413-426-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD 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.