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 |
|---|---|---|---|---|---|---|---|
| 2008-08-15 | 610-350-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | W CHESTER | PA |
| 2008-08-15 | 610-766-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | PHPHSBZN23 | PA |
| 2008-08-07 | 610-550-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN22 | PA |
| 2008-07-28 | 610-605-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PHPHSBZN13 | PA |
| 2008-07-11 | 610-241-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | W CHESTER | PA |
| 2008-07-11 | 610-422-5XXX | 5000–5999 | Assigned | VERIZON PENNSYLVANIA, INC. | 9208 | PHOENIXVL | PA |
| 2008-07-07 | 610-922-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | PHPHSBZN25 | PA |
| 2008-07-03 | 610-241-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | W CHESTER | PA |
| 2008-07-03 | 610-241-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | W CHESTER | PA |
| 2008-07-03 | 610-592-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-07-03 | 610-592-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-07-03 | 610-592-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-07-03 | 610-592-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-07-03 | 610-930-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-07-03 | 610-930-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-06-17 | 610-556-6XXX | 6000–6999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | UHLERSTOWN | PA |
| 2008-06-16 | 610-400-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | COATESVL | PA |
| 2008-06-06 | 610-233-3XXX | 3000–3999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN30 | PA |
| 2008-06-05 | 610-355-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN22 | PA |
| 2008-06-05 | 610-387-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN10 | PA |
| 2008-06-05 | 610-455-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | WESTTOWN | PA |
| 2008-06-05 | 610-536-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN21 | PA |
| 2008-06-05 | 610-548-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN12 | PA |
| 2008-06-05 | 610-553-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN17 | PA |
| 2008-06-05 | 610-605-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN13 | PA |
| 2008-06-05 | 610-619-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN11 | PA |
| 2008-06-05 | 610-708-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | MENDENHALL | PA |
| 2008-06-05 | 610-765-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | KENNETT SQ | PA |
| 2008-06-05 | 610-783-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN29 | PA |
| 2008-05-30 | 610-605-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN13 | PA |
| 2008-05-27 | 610-222-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | CENTER PT | PA |
| 2008-05-27 | 610-590-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | CHESTERSPG | PA |
| 2008-05-21 | 610-370-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | READING | PA |
| 2008-05-07 | 610-904-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | EMMAUS | PA |
| 2008-05-06 | 610-285-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NEWSMITHVL | PA |
| 2008-05-06 | 610-985-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | READING | PA |
| 2008-05-02 | 610-312-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-05-02 | 610-312-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-05-02 | 610-312-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-05-02 | 610-312-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN30 | PA |
| 2008-04-15 | 610-596-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | CATASAUQUA | PA |
| 2008-04-10 | 610-707-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN22 | PA |
| 2008-04-10 | 610-707-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN22 | PA |
| 2008-04-10 | 610-707-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN22 | PA |
| 2008-04-10 | 610-924-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN21 | PA |
| 2008-04-10 | 610-924-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN21 | PA |
| 2008-04-09 | 610-502-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | NORTHAMPTN | PA |
| 2008-04-08 | 610-271-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN29 | PA |
| 2008-04-08 | 610-271-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN29 | PA |
| 2008-04-08 | 610-271-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN29 | 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.