NumberResearchRecent thousands-block assignments
3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2007-09-10 | 610-370-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | READING | PA |
| 2007-09-10 | 610-741-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | READING | PA |
| 2007-09-10 | 610-898-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | READING | PA |
| 2007-09-07 | 610-895-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | KUNKLETOWN | PA |
| 2007-09-07 | 610-900-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PALMERTON | PA |
| 2007-09-07 | 610-951-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | KRESGEVL | PA |
| 2007-08-17 | 610-479-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | PHPHSBZN10 | PA |
| 2007-08-09 | 610-335-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | KENNETT SQ | PA |
| 2007-08-09 | 610-345-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | WEST GROVE | PA |
| 2007-08-08 | 610-787-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-08-08 | 610-787-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-08-08 | 610-787-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-08-08 | 610-806-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WEST GROVE | PA |
| 2007-07-17 | 610-729-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN31 | PA |
| 2007-07-16 | 610-340-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | POTTSTOWN | PA |
| 2007-07-16 | 610-463-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | READING | PA |
| 2007-07-16 | 610-930-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN30 | PA |
| 2007-07-13 | 610-625-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | BETHLEHEM | PA |
| 2007-07-05 | 610-500-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN10 | PA |
| 2007-06-29 | 610-343-2XXX | 2000–2999 | Assigned | CTSI, INC. - PA | 7513 | DOWNINGTN | PA |
| 2007-06-28 | 610-510-3XXX | 3000–3999 | Assigned | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | RIEGELSVL | PA |
| 2007-06-28 | 610-760-3XXX | 3000–3999 | Assigned | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | SLATINGTON | PA |
| 2007-06-21 | 610-621-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | READING | PA |
| 2007-06-11 | 610-755-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-06-11 | 610-755-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-06-11 | 610-755-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-06-11 | 610-755-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-06-11 | 610-755-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2007-05-23 | 610-427-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | POTTSTOWN | PA |
| 2007-05-16 | 610-297-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | BETHLEHEM | PA |
| 2007-05-16 | 610-297-7XXX | 7000–7999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | BETHLEHEM | PA |
| 2007-05-16 | 610-849-4XXX | 4000–4999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | BETHLEHEM | PA |
| 2007-05-14 | 610-488-3XXX | 3000–3999 | Assigned | CTSI, INC. - PA | 7513 | BERNVILLE | PA |
| 2007-05-14 | 610-589-8XXX | 8000–8999 | Assigned | CTSI, INC. - PA | 7513 | WOMELSDORF | PA |
| 2007-05-14 | 610-693-2XXX | 2000–2999 | Assigned | CTSI, INC. - PA | 7513 | ROBESONIA | PA |
| 2007-05-10 | 610-452-9XXX | 9000–9999 | Assigned | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | BANGOR | PA |
| 2007-05-10 | 610-881-4XXX | 4000–4999 | Assigned | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | PEN ARGYL | PA |
| 2007-05-08 | 610-400-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | COATESVL | PA |
| 2007-05-04 | 610-456-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | HELLERTOWN | PA |
| 2007-05-03 | 610-302-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | BOYERTOWN | PA |
| 2007-05-03 | 610-652-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | SASSAMNSVL | PA |
| 2007-05-03 | 610-702-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | BALLY | PA |
| 2007-05-03 | 610-901-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | MORGANTOWN | PA |
| 2007-04-19 | 610-467-0XXX | 0000–0999 | Assigned | ARMSTRONG TELECOMMUNICATIONS, INC. - PA | 422C | OXFORD | PA |
| 2007-04-12 | 610-401-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | READING | PA |
| 2007-04-12 | 610-401-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | READING | PA |
| 2007-04-11 | 610-990-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN11 | PA |
| 2007-04-10 | 610-550-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | PHPHSBZN22 | PA |
| 2007-03-30 | 610-741-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | READING | PA |
| 2007-03-30 | 610-741-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | READING | 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.