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 |
|---|---|---|---|---|---|---|---|
| 2004-10-15 | 414-763-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2004-10-15 | 414-763-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN1 | WI |
| 2004-09-10 | 414-732-2XXX | 2000–2999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2004-09-03 | 414-304-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN5 | WI |
| 2004-08-03 | 414-207-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-07-01 | 414-455-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MILWAUKZN1 | WI |
| 2004-06-04 | 414-574-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN5 | WI |
| 2004-06-03 | 414-731-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-06-03 | 414-731-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-04-07 | 414-235-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN3 | WI |
| 2004-04-06 | 414-731-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-04-06 | 414-731-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-04-06 | 414-731-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2004-02-27 | 414-455-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILWAUKZN1 | WI |
| 2004-01-23 | 414-727-7XXX | 7000–7999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2004-01-12 | 414-446-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILWAUKZN4 | WI |
| 2003-11-11 | 414-336-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-11-11 | 414-336-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-11-11 | 414-336-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-10-14 | 414-727-6XXX | 6000–6999 | Assigned | TDS METROCOM, LLC | 520K | MILWAUKZN1 | WI |
| 2003-09-26 | 414-326-1XXX | 1000–1999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2003-09-26 | 414-326-2XXX | 2000–2999 | Assigned | WISCONSIN BELL INC | 9327 | MILWAUKZN1 | WI |
| 2003-09-09 | 414-477-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-09-09 | 414-477-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-09-09 | 414-477-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-09-09 | 414-477-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-08-05 | 414-248-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2003-06-10 | 414-231-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN1 | WI |
| 2003-06-10 | 414-231-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN1 | WI |
| 2003-06-10 | 414-231-7XXX | 7000–7999 | Assigned | LEVEL 3 TELECOM OF WISCONSIN, LP - WI | 7322 | MILWAUKZN1 | WI |
| 2003-06-03 | 414-736-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | 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.