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Area Code 858
California area code 858 has been in service since 1999. It has 342 landlines and 61 wireless prefixes (exchanges) serviced by 35 carriers. It covers 4 counties, 740 ZIP codes, and 11 cities, including San Diego, La Jolla, Poway, Del Mar, Solana Beach, Rancho Santa Fe, Encinitas, El Cajon, and Carlsbad.
- State:
- California
- Time Zone:
- Pacific (9:18 pm)
Area Code (858) has 403 prefixes
| Prefix | County | City | Company/Carrier | Line Type |
|---|---|---|---|---|
| (858) 200- | San Diego | San Diego | U.s. Telepacific Corp. - Ca | Landline |
| (858) 201- | San Diego | San Diego | Level 3 Communications, Llc... | Landline |
| (858) 202- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 204- | San Diego | San Diego | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 205- | San Diego | San Diego | T-mobile Usa, Inc. | Cell Phone |
| (858) 206- | San Diego | San Diego | Ymax Communications Corp. - Ca | Landline |
| (858) 207- | San Diego | San Diego | Teleport Communications Gro... | Landline |
| (858) 208- | San Diego | San Diego | O1 Communications, Inc. - Ca | Landline |
| (858) 212- | San Diego | San Diego | Sprint Spectrum L.p. | Cell Phone |
| (858) 213- | San Diego | San Diego | Sprint Spectrum L.p. | Cell Phone |
| (858) 216- | San Diego | San Diego | U.s. Telepacific Corp. - Ca | Landline |
| (858) 217- | San Diego | San Diego | U.s. Telepacific Corp. - Ca | Landline |
| (858) 218- | San Diego | Poway | U.s. Telepacific Corp. - Ca | Landline |
| (858) 219- | San Diego | La Jolla | American Messaging Services... | Landline |
| (858) 220- | San Diego | San Diego | Sprint Spectrum L.p. | Cell Phone |
| (858) 222- | San Diego | San Diego | Ymax Communications Corp. - Ca | Landline |
| (858) 224- | Nevada | Washington | Cbeyond Communications, Llc... | Landline |
| (858) 225- | San Diego | San Diego | Pac - West Telecomm, Inc. | Landline |
| (858) 227- | San Diego | San Diego | Xo California, Inc. | Landline |
| (858) 228- | San Diego | San Diego | Xo California, Inc. | Landline |
| (858) 229- | San Diego | San Diego | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 231- | San Diego | San Diego | T-mobile Usa, Inc. | Cell Phone |
| (858) 232- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 233- | San Diego | San Diego | North County Communications... | Landline |
| (858) 234- | San Diego | San Diego | North County Communications... | Landline |
| (858) 235- | San Diego | San Diego | American Messaging Services... | Landline |
| (858) 236- | San Diego | San Diego | North County Communications... | Landline |
| (858) 237- | San Diego | San Diego | North County Communications... | Landline |
| (858) 240- | San Diego | San Diego | Tw Telecom Of California Lp... | Landline |
| (858) 241- | San Bernardino | Victorville | Unknown | Landline |
| (858) 243- | San Diego | San Diego | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 244- | San Diego | San Diego | Xo California, Inc. | Landline |
| (858) 245- | San Diego | San Diego | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 246- | San Diego | San Diego | Tw Telecom Of California Lp... | Landline |
| (858) 247- | San Diego | San Diego | Unknown | Landline |
| (858) 248- | San Diego | Poway | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 250- | San Diego | San Diego | Unknown | Landline |
| (858) 253- | San Diego | Del Mar | Unknown | Landline |
| (858) 254- | San Diego | San Diego | Sprint Spectrum L.p. | Cell Phone |
| (858) 255- | San Diego | San Diego | Teleport Communications Gro... | Landline |
| (858) 256- | Catawba | Hickory | Unknown | Landline |
| (858) 257- | San Diego | San Diego | Unknown | Landline |
| (858) 258- | San Diego | Encinitas | Unknown | Landline |
| (858) 259- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 268- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 270- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 271- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 272- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 273- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 274- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 277- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 278- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 279- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 285- | Fayette | Lexington | Unknown | Landline |
| (858) 289- | San Diego | San Diego | Unknown | Landline |
| (858) 290- | San Diego | San Diego | Unknown | Landline |
| (858) 291- | San Diego | Poway | Unknown | Landline |
| (858) 292- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 295- | San Diego | San Diego | Unknown | Landline |
| (858) 296- | San Diego | San Diego | Unknown | Landline |
| (858) 297- | San Diego | San Diego | North County Communications... | Landline |
| (858) 299- | San Diego | La Jolla | Unknown | Landline |
| (858) 300- | San Diego | San Diego | U.s. Telepacific Corp. - Ca | Landline |
| (858) 301- | Buncombe | Arden | Unknown | Landline |
| (858) 302- | San Diego | San Diego | Unknown | Landline |
| (858) 304- | San Diego | San Diego | At&t Local | Landline |
| (858) 309- | San Diego | San Diego | Tw Telecom Of California Lp... | Landline |
| (858) 312- | San Diego | San Diego | Cox California Telcom, Inc.... | Landline |
| (858) 314- | San Diego | San Diego | Teleport Communications Gro... | Landline |
| (858) 320- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 324- | San Diego | San Diego | Teleport Communications Gro... | Landline |
| (858) 327- | San Diego | San Diego | Unknown | Landline |
| (858) 332- | San Diego | San Diego | Tw Telecom Of California Lp... | Landline |
| (858) 334- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 335- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 336- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 337- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 342- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 344- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 345- | San Diego | Solana Beach | Cox California Telcom, Inc.... | Landline |
| (858) 346- | San Diego | San Diego | Global Crossing Local Servi... | Landline |
| (858) 348- | San Diego | San Diego | Xo California, Inc. | Landline |
| (858) 349- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 350- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 351- | San Diego | La Jolla | Unknown | Landline |
| (858) 352- | San Diego | San Diego | Mci Worldcom Communications... | Landline |
| (858) 353- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 354- | San Diego | San Diego | Cellco Partnership Dba Veri... | Cell Phone |
| (858) 356- | San Diego | Del Mar | Mpower Communications Corp... | Landline |
| (858) 357- | San Diego | San Diego | Tw Telecom Of California Lp... | Landline |
| (858) 358- | San Diego | San Diego | Unknown | Landline |
| (858) 360- | San Diego | San Diego | Pacific Bell | Landline |
| (858) 361- | San Diego | San Diego | New Cingular Wireless Pcs, Llc | Cell Phone |
| (858) 362- | San Diego | San Diego | Xo California, Inc. | Landline |
| (858) 364- | San Diego | San Diego | North County Communications... | Landline |
| (858) 365- | San Diego | San Diego | O1 Communications, Inc. - Ca | Landline |
| (858) 366- | San Diego | San Diego | Allegiance Telecom, Inc. - Ca | Landline |
| (858) 367- | San Diego | San Diego | O1 Communications, Inc. - Ca | Landline |
| (858) 368- | San Diego | San Diego | O1 Communications, Inc. - Ca | Landline |
| (858) 369- | San Diego | San Diego | At&t Local | Landline |
