NumberResearchRecent prefix assignments
360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, last 30 days
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 | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 818-970 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VAN NUYS | CA |
| — | 818-971 | 9XXX which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-972 | not yet reported which blocks → | PACIFIC BELL | 9740 | BRBN BRBN | CA |
| — | 818-973 | not yet reported which blocks → | PACIFIC BELL | 9740 | BRBN BRBN | CA |
| — | 818-975 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - CA | 649C | RESEDA | CA |
| — | 818-977 | not yet reported which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BRBN BRBN | CA |
| — | 818-978 | 1XXX2XXX which blocks → | UTILITY TELECOM GROUP, LLC - CA | 9262 | VAN NUYS | CA |
| — | 818-979 | 1XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFN SNFN | CA |
| — | 818-980 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-981 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-982 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-983 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-984 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-985 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-986 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-987 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-988 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-989 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-990 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-991 | not yet reported which blocks → | PACIFIC BELL | 9740 | AGOURA | CA |
| — | 818-992 | not yet reported which blocks → | PACIFIC BELL | 9740 | CANOGAPARK | CA |
| — | 818-993 | 2XXX which blocks → | PACIFIC BELL | 9740 | NORTHRIDGE | CA |
| — | 818-994 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-995 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-996 | not yet reported which blocks → | PACIFIC BELL | 9740 | RESEDA | CA |
| — | 818-997 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-998 | not yet reported which blocks → | PACIFIC BELL | 9740 | NORTHRIDGE | CA |
| — | 818-999 | not yet reported which blocks → | PACIFIC BELL | 9740 | CANOGAPARK | CA |
| — | 819-221 | not yet reported which blocks → | Telephone Milot Inc. | 8221 | Charette | — |
| — | 819-222 | not yet reported which blocks → | Telebec Ltee. | 8239 | Ste-Angele | — |
| — | 819-224 | not yet reported which blocks → | Telebec Ltee. | 8239 | St-Wenceslas | — |
| — | 819-225 | not yet reported which blocks → | Telebec Ltee. | 8239 | Ste-Eulalie | — |
| — | 819-226 | not yet reported which blocks → | Telebec Ltee. | 8239 | Aston-Jonction | — |
| — | 819-227 | not yet reported which blocks → | Bell Canada | 8050 | Maskinonge | — |
| — | 819-228 | not yet reported which blocks → | Bell Canada | 8050 | Louiseville | — |
| — | 819-229 | not yet reported which blocks → | Telebec Ltee. | 8239 | St-Celestin | — |
| — | 819-233 | not yet reported which blocks → | Telebec Ltee. | 8239 | St-Gregoire | — |
| — | 819-242 | not yet reported which blocks → | Bell Canada | 8050 | Grenville | — |
| — | 819-243 | not yet reported which blocks → | Bell Canada | 8050 | Ottawa-Hull | — |
| — | 819-246 | not yet reported which blocks → | Bell Canada | 8050 | Ottawa-Hull | — |
| — | 819-254 | not yet reported which blocks → | Bell Canada | 8050 | Inukjuak | — |
| — | 819-255 | not yet reported which blocks → | Bell Canada | 8050 | Salluit | — |
| — | 819-263 | not yet reported which blocks → | Bell Canada | 8050 | St-Pierre-Les-Becquets | — |
| — | 819-264 | not yet reported which blocks → | Telephone Milot Inc. | 8221 | Saint-Barnabe | — |
| — | 819-265 | not yet reported which blocks → | Telephone Milot Inc. | 8221 | Saint-Alexis-Des-Monts | — |
| — | 819-268 | not yet reported which blocks → | Telephone Milot Inc. | 8221 | Saint-Paulin | — |
| — | 819-274 | not yet reported which blocks → | Bell Canada | 8050 | La Minerve | — |
| — | 819-275 | not yet reported which blocks → | Bell Canada | 8050 | L'Annonciation | — |
| — | 819-278 | not yet reported which blocks → | Bell Canada | 8050 | Nominingue | — |
| — | 819-279 | not yet reported which blocks → | Telebec Ltee. | 8239 | Rouyn-Noranda | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.