NumberResearchRecent thousands-block assignments
6 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 775
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 |
|---|---|---|---|---|---|---|---|
| 2005-07-21 | 775-223-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | RENO | NV |
| 2005-07-21 | 775-223-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | RENO | NV |
| 2005-07-21 | 775-223-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | RENO | NV |
| 2005-07-21 | 775-223-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RENO | NV |
| 2005-07-14 | 775-223-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | RENO | NV |
| 2005-07-14 | 775-223-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | RENO | NV |
| 2005-07-14 | 775-223-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | RENO | NV |
| 2005-07-14 | 775-223-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | RENO | NV |
| 2005-07-11 | 775-909-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SILVER SPG | NV |
| 2005-06-29 | 775-315-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CARSONCITY | NV |
| 2005-06-29 | 775-315-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CARSONCITY | NV |
| 2005-06-28 | 775-313-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-28 | 775-313-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-28 | 775-313-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-28 | 775-313-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-28 | 775-313-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-28 | 775-313-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENO | NV |
| 2005-06-25 | 775-234-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | BAKER | NV |
| 2005-06-25 | 775-235-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | MCGILL | NV |
| 2005-06-25 | 775-237-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | EUREKA | NV |
| 2005-06-25 | 775-238-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | LUND | NV |
| 2005-06-25 | 775-293-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | ELY | NV |
| 2005-06-25 | 775-297-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | CARSONCITY | NV |
| 2005-06-25 | 775-298-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | CRYSTALBAY | NV |
| 2005-06-25 | 775-309-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | GARDNERVL | NV |
| 2005-06-25 | 775-319-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | FISHLK VLY | NV |
| 2005-06-25 | 775-344-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | YERINGTON | NV |
| 2005-06-25 | 775-346-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | ROUND MT | NV |
| 2005-06-25 | 775-372-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | LATHROWLLS | NV |
| 2005-06-25 | 775-455-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | BATTLE MT | NV |
| 2005-06-25 | 775-465-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SMITH VLY | NV |
| 2005-06-25 | 775-476-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SUTCLIFFE | NV |
| 2005-06-25 | 775-538-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | IMLAY | NV |
| 2005-06-25 | 775-545-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SWEETWATER | NV |
| 2005-06-25 | 775-553-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | BEATTY | NV |
| 2005-06-25 | 775-557-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | EMPIRE | NV |
| 2005-06-25 | 775-570-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | MONTGYPASS | NV |
| 2005-06-25 | 775-573-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | MINA | NV |
| 2005-06-25 | 775-574-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | NIXON | NV |
| 2005-06-25 | 775-581-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | TOPAZ LAKE | NV |
| 2005-06-25 | 775-583-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | VIRGINIACY | NV |
| 2005-06-25 | 775-589-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | STATELINE | NV |
| 2005-06-25 | 775-591-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SPVLYCHCRK | NV |
| 2005-06-25 | 775-621-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | WINNEMUCCA | NV |
| 2005-06-25 | 775-629-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | STAGECOACH | NV |
| 2005-06-25 | 775-773-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | SCHURZ | NV |
| 2005-06-25 | 775-979-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | LOVELOCK | NV |
| 2005-06-14 | 775-223-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | RENO | NV |
| 2005-06-14 | 775-285-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | GABBS | NV |
| 2005-06-14 | 775-468-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | CRESCNTVLY | NV |
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.