Local Calling Guide
Area code/prefix search
NPA: 551
[Rate centres in NPA 551]
[Dial plan for NPA 551]
NXX: 378
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 551-378
| A |
Cliffside |
NJ |
WAYNNJAWCMS |
6623 OMNIPOINT COMMUNICATIONS, INC. - NJ |
224 |
|
|
|
| 551-378
| 0 |
Cliffside |
NJ |
NWRKNJMDDSK |
637C ONVOY, LLC - NJ |
224 |
|
2024-08-24 |
|
| 551-378
| 1 |
Cliffside |
NJ |
NWRKNJ0248Z |
118F BANDWIDTH.COM CLEC, LLC - NJ |
224 |
|
2024-10-26 |
|
| 551-378
| 2 |
Cliffside |
NJ |
NWRKNJ0248Z |
118F BANDWIDTH.COM CLEC, LLC - NJ |
224 |
|
2024-10-26 |
|
| 551-378
| 4 |
Cliffside |
NJ |
|
637C ONVOY, LLC - NJ |
224 |
|
2026-09-17 |
|
| 551-378
| 5 |
Cliffside |
NJ |
|
637C ONVOY, LLC - NJ |
224 |
|
2026-08-15 |
|
| 551-378
| 6 |
Cliffside |
NJ |
|
637C ONVOY, LLC - NJ |
224 |
|
2026-08-15 |
|
| 551-378
| 7 |
Cliffside |
NJ |
RCPKNJ02XJY |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
224 |
|
2025-07-08 |
|
| 551-378
| 8 |
Cliffside |
NJ |
WAYNNJAWCMS |
6623 OMNIPOINT COMMUNICATIONS, INC. - NJ |
224 |
|
2023-11-24 |
|
| 551-378
| 9 |
Cliffside |
NJ |
WAYNNJAWCMS |
6623 OMNIPOINT COMMUNICATIONS, INC. - NJ |
224 |
|
2023-11-24 |
|
Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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