NumberResearchRecent thousands-block assignments
4 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, last 30 days — NPA 414
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 |
|---|---|---|---|---|---|---|---|
| 2007-01-26 | 414-837-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2007-01-23 | 414-377-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN3 | WI |
| 2007-01-05 | 414-231-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN1 | WI |
| 2006-12-07 | 414-758-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | MILWAUKZN1 | WI |
| 2006-12-01 | 414-699-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | MILWAUKZN1 | WI |
| 2006-11-29 | 414-202-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MILWAUKZN1 | WI |
| 2006-11-29 | 414-202-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | MILWAUKZN1 | WI |
| 2006-11-29 | 414-699-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MILWAUKZN1 | WI |
| 2006-11-29 | 414-793-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MILWAUKZN1 | WI |
| 2006-11-21 | 414-208-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-11-21 | 414-208-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-11-21 | 414-208-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-11-21 | 414-208-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-11-21 | 414-208-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-10-30 | 414-326-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2006-10-30 | 414-334-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN5 | WI |
| 2006-10-30 | 414-897-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2006-10-30 | 414-897-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2006-10-13 | 414-751-2XXX | 2000–2999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN4 | WI |
| 2006-10-13 | 414-751-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN4 | WI |
| 2006-10-09 | 414-238-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-10-09 | 414-721-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2006-09-20 | 414-375-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN4 | WI |
| 2006-09-12 | 414-755-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | MILWAUKZN1 | WI |
| 2006-09-07 | 414-446-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN4 | WI |
| 2006-08-23 | 414-467-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2006-08-17 | 414-326-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
| 2006-08-17 | 414-455-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
| 2006-08-17 | 414-455-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
| 2006-08-09 | 414-897-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2006-07-14 | 414-326-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2006-06-05 | 414-236-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MILWAUKZN4 | WI |
| 2006-05-24 | 414-921-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
| 2006-05-16 | 414-235-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN3 | WI |
| 2006-05-16 | 414-304-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN5 | WI |
| 2006-05-01 | 414-459-2XXX | 2000–2999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2006-04-14 | 414-238-6XXX | 6000–6999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2006-03-30 | 414-304-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN5 | WI |
| 2006-03-29 | 414-235-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MILWAUKZN3 | WI |
| 2006-03-08 | 414-459-7XXX | 7000–7999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2006-02-23 | 414-306-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN3 | WI |
| 2006-02-17 | 414-292-0XXX | 0000–0999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2006-02-17 | 414-292-1XXX | 1000–1999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2006-02-17 | 414-292-2XXX | 2000–2999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2006-02-17 | 414-292-3XXX | 3000–3999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2006-02-10 | 414-459-5XXX | 5000–5999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2006-02-10 | 414-459-6XXX | 6000–6999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2006-01-24 | 414-326-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2006-01-17 | 414-215-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MILWAUKZN5 | WI |
| 2005-11-14 | 414-312-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
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.