NumberResearchRecent thousands-block assignments
17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 412
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 |
|---|---|---|---|---|---|---|---|
| 2003-06-05 | 412-246-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON1 | PA |
| 2003-06-03 | 412-246-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON1 | PA |
| 2003-05-29 | 412-436-2XXX | 2000–2999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON4 | PA |
| 2003-04-29 | 412-548-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTGSBNZN17 | PA |
| 2003-02-28 | 412-387-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ELIZABETH | PA |
| 2003-02-28 | 412-489-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTGSBNZN14 | PA |
| 2003-02-28 | 412-499-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON2 | PA |
| 2003-02-14 | 412-942-7XXX | 7000–7999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2003-02-14 | 412-942-8XXX | 8000–8999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2003-01-31 | 412-436-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON4 | PA |
| 2002-12-23 | 412-253-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON6 | PA |
| 2002-12-23 | 412-307-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON2 | PA |
| 2002-12-23 | 412-436-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON4 | PA |
| 2002-12-23 | 412-923-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON7 | PA |
| 2002-12-02 | 412-229-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | PTGSBNZN22 | PA |
| 2002-12-02 | 412-455-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | PTGSBNZN19 | PA |
| 2002-12-02 | 412-729-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | ELIZABETH | PA |
| 2002-11-18 | 412-406-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN19 | PA |
| 2002-11-13 | 412-386-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN11 | PA |
| 2002-11-13 | 412-536-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN17 | PA |
| 2002-10-29 | 412-368-4XXX | 4000–4999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON5 | PA |
| 2002-10-28 | 412-942-2XXX | 2000–2999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2002-10-28 | 412-942-3XXX | 3000–3999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2002-10-28 | 412-942-4XXX | 4000–4999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2002-10-28 | 412-942-5XXX | 5000–5999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2002-10-28 | 412-942-6XXX | 6000–6999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTTSBGZON6 | PA |
| 2002-10-16 | 412-223-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON2 | PA |
| 2002-10-07 | 412-862-4XXX | 4000–4999 | Assigned | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| 2002-09-06 | 412-256-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON4 | PA |
| 2002-09-06 | 412-345-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON8 | PA |
| 2002-09-06 | 412-346-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTGSBNZN10 | PA |
| 2002-08-30 | 412-348-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTGSBNZN17 | PA |
| 2002-08-09 | 412-223-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON2 | PA |
| 2002-08-09 | 412-253-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON6 | PA |
| 2002-07-18 | 412-223-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | PTTSBGZON2 | PA |
| 2002-07-17 | 412-267-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN10 | PA |
| 2002-07-02 | 412-548-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN17 | PA |
| 2002-06-13 | 412-436-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON4 | PA |
| 2002-04-16 | 412-406-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN19 | PA |
| 2002-04-16 | 412-489-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN14 | PA |
| 2002-04-04 | 412-632-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON3 | PA |
| 2002-04-04 | 412-744-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN21 | PA |
| 2002-02-21 | 412-799-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON3 | PA |
| 2002-01-03 | 412-267-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN10 | PA |
| 2001-12-18 | 412-347-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN12 | PA |
| 2001-11-21 | 412-205-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PTTSBGZON5 | PA |
| 2001-11-21 | 412-423-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | PTGSBNZN20 | PA |
| 2001-11-21 | 412-593-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON6 | PA |
| 2001-11-21 | 412-772-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON3 | PA |
| 2001-11-05 | 412-204-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON8 | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.