NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 610
ONVOY, LLC - PA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 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
2012-09-07 610-557-1XXX 1000–1999Assigned ONVOY, LLC - PA 547E PHPHSBZN22 PA
2012-09-07 610-756-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E KEMPTON PA
2012-08-29 610-612-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J KENNETT SQ PA
2012-08-16 610-910-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F AVONDALE PA
2012-08-15 610-535-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 PHPHSBZN26 PA
2012-07-05 610-674-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2012-07-05 610-674-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2012-06-13 610-674-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ALLENTOWN PA
2012-06-08 610-488-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F BERNVILLE PA
2012-06-08 610-589-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F WOMELSDORF PA
2012-06-07 610-314-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2012-06-07 610-674-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F ALLENTOWN PA
2012-06-06 610-979-8XXX 8000–8999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C ATGLEN PA
2012-06-01 610-813-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NAZARETH PA
2012-05-21 610-314-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F W CHESTER PA
2012-05-15 610-314-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
2012-05-15 610-314-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
2012-05-15 610-314-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
2012-04-24 610-345-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WEST GROVE PA
2012-03-30 610-314-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2012-02-28 610-699-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PHPHSBZN28 PA
2012-02-15 610-816-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 READING PA
2012-02-07 610-674-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F ALLENTOWN PA
2012-02-03 610-924-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN21 PA
2012-01-30 610-674-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2012-01-30 610-674-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2012-01-10 610-314-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2012-01-09 610-515-3XXX 3000–3999Assigned METROPCS, INC. 5562 EASTON PA
2012-01-09 610-515-4XXX 4000–4999Assigned METROPCS, INC. 5562 EASTON PA
2011-12-29 610-285-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NEWSMITHVL PA
2011-12-27 610-816-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 READING PA
2011-12-12 610-848-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PHPHSBZN22 PA
2011-12-02 610-314-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F W CHESTER PA
2011-11-30 610-816-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F READING PA
2011-11-18 610-314-2XXX 2000–2999Assigned VERIZON PENNSYLVANIA, INC. 9208 W CHESTER PA
2011-11-17 610-833-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PHPHSBZN11 PA
2011-11-08 610-425-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2011-09-28 610-427-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSTOWN PA
2011-09-28 610-719-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2011-09-27 610-816-2XXX 2000–2999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 READING PA
2011-09-16 610-205-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - PA 283E PHPHSBZN30 PA
2011-09-14 610-235-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
2011-09-09 610-333-7XXX 7000–7999Assigned METROPCS, INC. 5562 EASTON PA
2011-08-30 610-427-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F POTTSTOWN PA
2011-08-16 610-810-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J EASTON PA
2011-08-11 610-766-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PHPHSBZN23 PA
2011-07-12 610-427-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 POTTSTOWN PA
2011-07-08 610-427-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSTOWN PA
2011-07-07 610-312-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN30 PA
2011-07-07 610-427-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 POTTSTOWN PA

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.