551 area code
| State | New Jersey |
| Primary City | Jersey City, NJ |
| Timezone | Eastern |
Example of cities also covered by area code 551
Bayonne, NJ
Cliffside Park, NJ
Cliffside Pk, NJ
Dumont, NJ
Fair Lawn, NJ
Hackensack, NJ
Jersey City, NJ
Kearny, NJ
Newark, NJ
Ramsey, NJ
Union City, NJ
Westwood, NJ
Wyckoff, NJ
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551 area code prefixes
| 551-206 | FAIR LAWN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-208 | JERSEYCITY | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 551-221 | BAYONNE | OMNIPOINT COMMUNICATIONS, INC. - NJ |
| 551-226 | JERSEYCITY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-265 | HACKENSACK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-333 | CLIFFSIDE | NETWORK BILLING SYSTEMS, LC - NJ |
| 551-358 | JERSEYCITY | OMNIPOINT COMMUNICATIONS, INC. - NJ |
| 551-404 | HACKENSACK | OMNIPOINT COMMUNICATIONS, INC. - NJ |
| 551-427 | RAMSEY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-482 | UNION CITY | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 551-486 | HACKENSACK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-497 | HACKENSACK | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-556 | UNION CITY | OMNIPOINT COMMUNICATIONS, INC. - NJ |
| 551-574 | CLIFFSIDE | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 551-579 | RAMSEY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-580 | KEARNY | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 551-587 | HACKENSACK | OMNIPOINT COMMUNICATIONS, INC. - NJ |
| 551-655 | JERSEYCITY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-689 | JERSEYCITY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-697 | JERSEYCITY | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-795 | FAIR LAWN | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ |
| 551-804 | WYCKOFF | SPRINT SPECTRUM L.P. |