NumberResearchRecent thousands-block assignments
12 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 608
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 |
|---|---|---|---|---|---|---|---|
| 2008-04-23 | 608-379-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MOUNT HOPE | WI |
| 2008-04-23 | 608-636-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | NEW GLARUS | WI |
| 2008-04-09 | 608-420-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ALBANY | WI |
| 2008-04-03 | 608-864-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | BLAIR | WI |
| 2008-03-28 | 608-426-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONROE | WI |
| 2008-03-14 | 608-299-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BELOIT | WI |
| 2008-02-20 | 608-373-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JANESVILLE | WI |
| 2008-02-20 | 608-659-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MINDORO | WI |
| 2008-02-20 | 608-737-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NO FREEDOM | WI |
| 2008-02-20 | 608-892-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WARRENS | WI |
| 2008-02-14 | 608-514-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | MADISON | WI |
| 2008-02-12 | 608-285-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MADISON | WI |
| 2008-02-12 | 608-450-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | OXFORD | WI |
| 2008-02-12 | 608-619-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | COONVALLEY | WI |
| 2008-02-06 | 608-396-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MELROSE | WI |
| 2008-02-06 | 608-929-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HIGHLAND | WI |
| 2008-02-01 | 608-338-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2008-02-01 | 608-338-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2008-02-01 | 608-371-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JANESVILLE | WI |
| 2008-02-01 | 608-371-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JANESVILLE | WI |
| 2008-01-30 | 608-351-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WEST SALEM | WI |
| 2008-01-25 | 608-320-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2008-01-25 | 608-320-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2008-01-25 | 608-609-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2008-01-22 | 608-208-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JANESVILLE | WI |
| 2008-01-22 | 608-216-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2008-01-16 | 608-234-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2008-01-16 | 608-234-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2008-01-14 | 608-408-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | BRIGGSVL | WI |
| 2008-01-14 | 608-531-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | JANESVILLE | WI |
| 2007-12-13 | 608-477-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | BARABOO | WI |
| 2007-12-06 | 608-512-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-12-06 | 608-512-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-11-27 | 608-203-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MIDDLETON | WI |
| 2007-11-27 | 608-318-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SUNPRAIRIE | WI |
| 2007-11-20 | 608-229-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | MADISON | WI |
| 2007-11-19 | 608-729-1XXX | 1000–1999 | Assigned | TDS METROCOM, LLC | 520K | MADISON | WI |
| 2007-11-13 | 608-512-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-11-13 | 608-512-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-11-13 | 608-512-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-11-09 | 608-320-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2007-11-09 | 608-320-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2007-11-09 | 608-320-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MADISON | WI |
| 2007-11-02 | 608-462-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | ELROY | WI |
| 2007-10-24 | 608-512-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2007-10-19 | 608-830-6XXX | 6000–6999 | Assigned | MID-PLAINS TEL., INC. | 0881 | MIDDLETON | WI |
| 2007-10-17 | 608-316-8XXX | 8000–8999 | Assigned | TDS METROCOM, LLC | 520K | MADISON | WI |
| 2007-09-24 | 608-316-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | MADISON | WI |
| 2007-09-13 | 608-371-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | JANESVILLE | WI |
| 2007-09-07 | 608-415-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | REEDSBURG | WI |
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.