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 610
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-06-04 | 610-991-5XXX | 5000–5999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | EASTON | PA |
| 2006-02-02 | 610-321-8XXX | 8000–8999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | EAGLE | PA |
| 2004-11-12 | 610-482-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHOENIXVL | PA |
| 2003-09-23 | 610-406-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | READING | PA |
| 2003-04-17 | 610-455-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | WESTTOWN | PA |
| 2003-04-07 | 610-552-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN24 | PA |
| 2002-11-13 | 610-833-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN11 | PA |
| 2002-11-13 | 610-915-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN14 | PA |
| 2002-08-07 | 610-545-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN10 | PA |
| 2002-08-07 | 610-707-4XXX | 4000–4999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN22 | PA |
| 2002-08-07 | 610-922-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN25 | PA |
| 2002-04-08 | 610-295-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | ALLENTOWN | PA |
| 2002-04-08 | 610-382-5XXX | 5000–5999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN30 | PA |
| 2002-04-08 | 610-538-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN23 | PA |
| 2002-04-08 | 610-561-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | EXTON | PA |
| 2002-04-08 | 610-629-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN31 | PA |
| 2002-04-08 | 610-947-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN26 | PA |
| 2002-04-08 | 610-981-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - PA | 5494 | PHPHSBZN28 | 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.