NumberResearchRecent thousands-block assignments
0 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, all time — NPA 215
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 |
|---|---|---|---|---|---|---|---|
| 2010-10-20 | 215-558-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN1 | PA |
| 2010-10-20 | 215-971-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN1 | PA |
| 2009-09-24 | 215-475-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN3 | PA |
| 2009-09-24 | 215-475-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN3 | PA |
| 2009-09-24 | 215-475-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN3 | PA |
| 2009-07-13 | 215-583-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NORTHWALES | PA |
| 2009-02-03 | 215-376-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN34 | PA |
| 2009-01-30 | 215-274-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-469-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-469-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-559-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-559-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-559-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2009-01-30 | 215-666-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | MORRISVL | PA |
| 2009-01-30 | 215-909-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2009-01-30 | 215-909-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2009-01-30 | 215-909-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2009-01-30 | 215-909-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2009-01-30 | 215-909-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2009-01-30 | 215-909-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | PA |
| 2008-07-11 | 215-853-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | LANSDALE | PA |
| 2008-06-20 | 215-550-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEWTOWN | PA |
| 2008-06-20 | 215-550-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEWTOWN | PA |
| 2008-06-20 | 215-554-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-20 | 215-554-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-20 | 215-583-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NORTHWALES | PA |
| 2008-06-20 | 215-758-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN34 | PA |
| 2008-06-20 | 215-758-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN34 | PA |
| 2008-06-20 | 215-780-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN34 | PA |
| 2008-06-20 | 215-780-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN34 | PA |
| 2008-06-20 | 215-856-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-20 | 215-904-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-20 | 215-904-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-20 | 215-992-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN4 | PA |
| 2008-06-18 | 215-666-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | MORRISVL | PA |
| 2008-04-25 | 215-469-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2008-04-25 | 215-469-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2008-04-25 | 215-469-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2008-04-25 | 215-469-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHPHSBZN33 | PA |
| 2008-04-09 | 215-550-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEWTOWN | PA |
| 2008-04-09 | 215-550-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEWTOWN | PA |
| 2008-04-09 | 215-621-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN3 | PA |
| 2008-03-14 | 215-254-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN3 | PA |
| 2008-03-14 | 215-583-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NORTHWALES | PA |
| 2008-03-14 | 215-666-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | MORRISVL | PA |
| 2008-03-14 | 215-693-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEW HOPE | PA |
| 2007-07-17 | 215-550-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | NEWTOWN | PA |
| 2007-07-16 | 215-397-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - PA | 283E | PHLDLPHZN2 | 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.