NumberResearchRecent prefix assignments
2 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 — NPA 835
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 |
|---|---|---|---|---|---|---|
| 2024-12-04 | 835-253 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN17 | PA |
| 2024-10-31 | 835-997 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | ALLENTOWN | PA |
| 2024-10-07 | 835-249 | 0–9 XXXwhole prefix which blocks → | EON TELECOM, INC. | 839J | BALLY | PA |
| 2024-10-07 | 835-251 | 0–9 XXXwhole prefix which blocks → | EON TELECOM, INC. | 839J | BATH | PA |
| 2024-10-07 | 835-252 | 0–9 XXXwhole prefix which blocks → | EON TELECOM, INC. | 839J | CENTER PT | PA |
| 2024-10-07 | 835-998 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN30 | PA |
| 2024-09-20 | 835-250 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2024-09-16 | 835-248 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2024-07-30 | 835-247 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2024-05-02 | 835-246 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | W CHESTER | PA |
| 2024-03-28 | 835-245 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | ALLENTOWN | PA |
| 2024-03-14 | 835-243 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN30 | PA |
| 2024-03-14 | 835-244 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN30 | PA |
| 2024-03-12 | 835-242 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | READING | PA |
| 2024-02-14 | 835-240 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BETHLEHEM | PA |
| 2024-02-14 | 835-241 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2024-01-12 | 835-239 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | ALLENTOWN | PA |
| 2024-01-02 | 835-238 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN30 | PA |
| 2023-11-03 | 835-237 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2023-10-24 | 835-235 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN10 | PA |
| 2023-10-24 | 835-236 | 7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PUGHTOWN | PA |
| 2023-10-17 | 835-234 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ALLENTOWN | PA |
| 2023-10-04 | 835-233 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2023-09-25 | 835-231 | 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | CATASAUQUA | PA |
| 2023-09-25 | 835-232 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN30 | PA |
| 2023-09-05 | 835-229 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - PA | 547E | NAZARETH | PA |
| 2023-09-05 | 835-230 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN11 | PA |
| 2023-08-17 | 835-228 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2023-08-16 | 835-227 | 0–9 XXXall 10 · 6 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | EASTON | PA |
| 2023-08-11 | 835-226 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN17 | PA |
| 2023-08-09 | 835-225 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | ALLENTOWN | PA |
| 2023-07-28 | 835-224 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | READING | PA |
| 2023-07-27 | 835-223 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2023-07-26 | 835-222 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2023-07-20 | 835-221 | 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | POTTSTOWN | PA |
| 2023-07-18 | 835-220 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN10 | PA |
| 2023-06-08 | 835-219 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2023-04-20 | 835-218 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2023-04-10 | 835-216 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | BOOST SUBSCRIBERCO L.L.C. | 490J | AVONDALE | PA |
| 2023-04-10 | 835-217 | 0XXX5XXX6XXX · 2 holders which blocks → | BOOST SUBSCRIBERCO L.L.C. | 490J | PARKESBURG | PA |
| 2023-02-07 | 835-215 | 0–9 XXXall 10 · 5 holders which blocks → | NUSO, LLC | 732J | ALLENTOWN | PA |
| 2023-01-31 | 835-214 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | NORTHAMPTN | PA |
| 2023-01-11 | 835-213 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN14 | PA |
| 2023-01-10 | 835-212 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN13 | PA |
| 2023-01-04 | 835-210 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2022-11-21 | 835-209 | 0–9 XXXall 10 · 3 holders which blocks → | COMMIO, LLC | 939H | EASTON | PA |
| 2022-11-08 | 835-208 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN23 | PA |
| 2022-10-27 | 835-206 | 0XXX1XXX4XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | ATGLEN | PA |
| 2022-10-24 | 835-205 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | PA |
| 2022-10-13 | 835-207 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN30 | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.