NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 412
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-11-14 | 412-870-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2023-11-14 | 412-870-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2023-11-14 | 412-870-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2022-03-28 | 412-240-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2022-03-28 | 412-240-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2017-01-17 | 412-214-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON8 | PA |
| 2012-08-07 | 412-888-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2012-08-07 | 412-888-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2012-08-07 | 412-888-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2012-08-07 | 412-888-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2012-08-07 | 412-888-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2012-01-26 | 412-501-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON4 | PA |
| 2011-01-20 | 412-315-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2010-08-03 | 412-538-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2010-08-03 | 412-538-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2010-08-03 | 412-538-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2008-08-25 | 412-474-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2008-08-25 | 412-474-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2008-08-25 | 412-474-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2008-05-09 | 412-258-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2008-03-18 | 412-406-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN19 | PA |
| 2006-03-23 | 412-776-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN15 | PA |
| 2002-11-13 | 412-536-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN17 | PA |
| 2002-01-03 | 412-267-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN10 | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.