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 |
|---|---|---|---|---|---|---|---|
| 2006-12-20 | 412-535-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2006-12-18 | 412-390-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-12-01 | 412-203-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTGSBNZN15 | PA |
| 2006-11-21 | 412-535-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2006-11-21 | 412-535-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2006-11-14 | 412-301-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON2 | PA |
| 2006-11-14 | 412-722-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTGSBNZN14 | PA |
| 2006-11-08 | 412-794-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN20 | PA |
| 2006-11-08 | 412-892-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTTSBGZON6 | PA |
| 2006-11-08 | 412-892-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTTSBGZON6 | PA |
| 2006-11-03 | 412-595-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN12 | PA |
| 2006-11-03 | 412-595-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN12 | PA |
| 2006-10-20 | 412-223-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON2 | PA |
| 2006-10-18 | 412-390-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-10-13 | 412-744-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN21 | PA |
| 2006-09-29 | 412-246-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2006-09-29 | 412-246-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2006-09-29 | 412-378-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTGSBNZN22 | PA |
| 2006-09-19 | 412-534-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN16 | PA |
| 2006-09-18 | 412-564-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN13 | PA |
| 2006-09-14 | 412-304-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2006-09-14 | 412-304-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2006-09-14 | 412-390-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-11 | 412-735-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-09-06 | 412-489-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN14 | PA |
| 2006-09-06 | 412-489-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTGSBNZN14 | PA |
| 2006-08-25 | 412-390-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-08-23 | 412-254-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON6 | PA |
| 2006-08-10 | 412-715-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-08-10 | 412-715-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-08-10 | 412-735-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-08-10 | 412-735-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-08-10 | 412-735-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-07-25 | 412-390-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-07-25 | 412-722-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTGSBNZN14 | PA |
| 2006-07-14 | 412-320-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-07-14 | 412-320-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-07-14 | 412-320-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-651-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-651-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-651-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-715-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-715-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-715-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2006-06-07 | 412-715-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | 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.