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 |
|---|---|---|---|---|---|---|---|
| 2024-07-18 | 610-628-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ALLENTOWN | PA |
| 2019-07-11 | 610-614-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NAZARETH | PA |
| 2019-04-15 | 610-901-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MORGANTOWN | PA |
| 2018-04-09 | 610-652-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | SASSAMNSVL | PA |
| 2018-02-06 | 610-735-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | IRONTON | PA |
| 2017-09-01 | 610-214-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | COOPERSBG | PA |
| 2017-08-09 | 610-498-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BELVIDERE | PA |
| 2017-06-02 | 610-899-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | TOPTON | PA |
| 2017-06-02 | 610-919-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | YELLOW HS | PA |
| 2017-05-18 | 610-214-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | COOPERSBG | PA |
| 2017-05-18 | 610-556-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | UHLERSTOWN | PA |
| 2017-04-10 | 610-493-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | OLEY | PA |
| 2017-04-10 | 610-575-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BIRDSBORO | PA |
| 2017-04-10 | 610-702-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BALLY | PA |
| 2017-04-10 | 610-875-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | GREENHILLS | PA |
| 2017-04-10 | 610-901-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MORGANTOWN | PA |
| 2015-10-21 | 610-813-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NAZARETH | PA |
| 2015-10-01 | 610-598-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BOWMANSTN | PA |
| 2015-10-01 | 610-895-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | KUNKLETOWN | PA |
| 2015-10-01 | 610-900-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PALMERTON | PA |
| 2015-10-01 | 610-951-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | KRESGEVL | PA |
| 2015-09-22 | 610-333-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | EASTON | PA |
| 2015-05-27 | 610-881-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PEN ARGYL | PA |
| 2013-08-23 | 610-285-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NEWSMITHVL | PA |
| 2013-01-03 | 610-679-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | COATESVL | PA |
| 2012-10-18 | 610-572-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN21 | PA |
| 2012-06-13 | 610-674-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ALLENTOWN | PA |
| 2012-06-01 | 610-813-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NAZARETH | PA |
| 2012-02-15 | 610-816-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | READING | PA |
| 2012-02-03 | 610-924-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN21 | PA |
| 2011-12-29 | 610-285-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NEWSMITHVL | PA |
| 2011-06-29 | 610-427-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | POTTSTOWN | PA |
| 2011-02-28 | 610-719-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | W CHESTER | PA |
| 2011-02-18 | 610-709-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ALLENTOWN | PA |
| 2010-11-17 | 610-709-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ALLENTOWN | PA |
| 2008-11-04 | 610-924-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN21 | PA |
| 2008-05-06 | 610-285-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NEWSMITHVL | PA |
| 2008-02-14 | 610-813-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NAZARETH | PA |
| 2008-01-30 | 610-810-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | EASTON | PA |
| 2008-01-30 | 610-810-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | EASTON | PA |
| 2007-10-24 | 610-400-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | COATESVL | PA |
| 2007-10-24 | 610-624-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN17 | 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 |
| 2006-12-01 | 610-898-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | READING | PA |
| 2006-08-08 | 610-849-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BETHLEHEM | PA |
| 2006-04-14 | 610-285-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | NEWSMITHVL | PA |
| 2006-04-14 | 610-400-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | COATESVL | PA |
| 2006-04-07 | 610-616-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN14 | 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.