Active Prefixes in Area Code 858
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 858-314-#### | San Diego | Landline Numbers | Teleport Communicati... |
| 858-320-#### | San Diego | Landline Numbers | Pacific Bell... |
| 858-324-#### | San Diego | Landline Numbers | Teleport Communicati... |
| 858-332-#### | San Diego | Landline Numbers | Tw Telecom Of Califo... |
| 858-333-#### | San Diego | Landline Numbers | Telcentris Communica... |
| 858-334-#### | San Diego | Landline Numbers | Pacific Bell... |
| 858-335-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-336-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-337-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-342-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-344-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-345-#### | San Diego | Landline Numbers | Cox California Telco... |
| 858-346-#### | San Diego | Landline Numbers | Global Crossing Loca... |
| 858-347-#### | San Diego | Wireless Numbers | Usa Mobility Wireles... |
| 858-348-#### | San Diego | Landline Numbers | Xo California, Inc.... |
| 858-349-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-350-#### | Del Mar | Landline Numbers | Pacific Bell... |
| 858-352-#### | San Diego | Landline Numbers | Mci Worldcom Communi... |
| 858-353-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-354-#### | Vista | Wireless Numbers | Cellco Partnership D... |
| 858-356-#### | San Diego | Landline Numbers | Mpower Communication... |
| 858-357-#### | Vista | Landline Numbers | Tw Telecom Of Califo... |
| 858-359-#### | San Diego | Landline Numbers | Cook Telecom, Inc.... |
| 858-360-#### | San Diego | Landline Numbers | Pacific Bell... |
| 858-361-#### | San Diego | Wireless Numbers | New Cingular Wireles... |
| 858-362-#### | San Diego | Landline Numbers | Xo California, Inc.... |
| 858-364-#### | San Diego | Landline Numbers | North County Communi... |
| 858-365-#### | San Diego | Landline Numbers | O1 Communications, I... |
| 858-366-#### | San Diego | Landline Numbers | Xo California, Inc.... |
| 858-367-#### | San Diego | Landline Numbers | O1 Communications, I... |
Area Code 858 Introduction
| Area Code: | 858 |
| Country: | United States |
| State/Province: | California - CA |
| Major City: | San Diego |
| Time Zone: | Pacific |
| Average property | $1.69M |
| Average age | 63 y/o |
| Average assets | $172K |
| Population density | 163,696 sq mi (423,970 km2) |
| Population | 39,250,017 |
| latitude Longitude: | |
| 32°32′ N to 42° N / 114°8′ W to 124°26′ W | |
| About 858 : | |
| The 858 Area Code (or Area Code 858) is located in the state of CA. Area Code 858 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 837 thousand unique phone numbers and 2.48 million individuals near the city of La Jolla Area code 858 was put into service. Area code 858 was created from a split of area code 619. |
|
| Major cities or places | |
| Poway, CA | |