Active Prefixes in Area Code 858

Prefix Location Company
858-200 La Jolla, CA U.s. Telepacific Corp.
858-201 San Diego, CA Level 3 Communications
858-202 La Jolla, CA Pacific Bell
858-203 SAN DIEGO Onvoy LLC - CA
858-204 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-205 San Diego, CA T-mobile Usa
858-206 Poway, CA Ymax Communications Corp.
858-207 Rancho Bernardo, CA Teleport Communications America
858-208 San Diego, CA O1 Communications
858-209 SAN DIEGO T-Mobile USA Inc
858-210 La Jolla, CA Cellco Partnership DBA Verizon Wireless
858-212 San Diego, CA Sprint Spectrum L.p.
858-213 San Diego, CA Sprint Spectrum L.p.
858-214 California
858-215 San Diego, CA Pacific Bell
858-216 San Diego, CA U.s. Telepacific Corp.
858-217 San Diego, CA U.s. Telepacific Corp.
858-218 San Diego, CA U.s. Telepacific Corp.
858-219 San Diego, CA American Messaging Services
858-220 La Jolla, CA Sprint Spectrum L.p.
858-221 SAN DIEGO New Cingular Wireless PCS LLC
858-222 La Jolla, CA Ymax Communications Corp.
858-223 San Diego, CA Onvoy
858-224 San Diego, CA Cbeyond Communications
858-225 San Diego, CA Pac - West Telecomm
858-226 SAN DIEGO T-Mobile USA Inc
858-227 San Diego, CA Xo California
858-228 La Jolla, CA Xo California
858-229 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-230 San Diego, CA Sbc Internet Services
858-231 Poway, CA T-mobile Usa
858-232 La Jolla, CA New Cingular Wireless PCS
858-233 La Jolla, CA North County Communications Corp.
858-234 Rancho Bernardo, CA North County Communications Corp.
858-235 Poway Network Services Llc
858-236 Poway, CA North County Communications Corp.
858-237 San Diego, CA North County Communications Corp.
858-239 SAN DIEGO Broadvox-CLEC LLC - CA
858-240 San Diego, CA Tw Telecom Of California Lp
858-241 San Diego Metrocall
858-242 San Diego, CA New Cingular Wireless PCS
858-243 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-244 San Diego, CA Xo California
858-245 La Jolla, CA Cellco Partnership DBA Verizon Wireless
858-246 La Jolla, CA Tw Telecom Of California Lp
858-247 SAN DIEGO Bandwidth.com CLEC LLC - CA
858-248 Poway, CA Cellco Partnership DBA Verizon Wireless
858-249 San Diego, CA New Cingular Wireless PCS
858-250 SAN DIEGO Level 3 Communications LLC - CA
858-251 San Diego, CA Peerless Network Of California
858-252 SAN DIEGO Bandwidth.com CLEC LLC - CA
858-253 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-254 San Diego, CA Sprint Spectrum L.p.
858-255 La Jolla, CA Teleport Communications America
858-256 San Diego, CA Cox California Telcom, L.l.c.
858-257 SAN DIEGO Level 3 Communications LLC - CA
858-258 California
858-259 Del Mar, CA Pacific Bell
858-260 La Jolla, CA T-mobile Usa
858-261 SAN DIEGO US Telepacific Corporation - CA
858-262 SAN DIEGO US Telepacific Corporation - CA
858-263 San Diego, CA Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl
858-264 SAN DIEGO Broadvox-CLEC LLC - CA
858-265 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-266 San Diego, CA Pacific Bell
858-267 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-268 San Diego, CA Pacific Bell
858-269 California
858-270 La Jolla, CA Pacific Bell
858-271 San Diego, CA Pacific Bell
858-272 La Jolla, CA Pacific Bell
858-273 La Jolla, CA Pacific Bell
858-274 La Jolla, CA Pacific Bell
858-275 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-276 SAN DIEGO Wide Voice LLC - CA
858-277 San Diego, CA Pacific Bell
858-278 San Diego, CA Pacific Bell
858-279 San Diego, CA Pacific Bell
858-280 SAN DIEGO Neutral Tandem-California LLC - CA
858-281 San Diego, CA Level 3 Communications
858-282 SAN DIEGO New Cingular Wireless PCS LLC
858-283 SAN DIEGO Broadvox-CLEC LLC - CA
858-284 SAN DIEGO Level 3 Communications LLC - CA
858-285 SAN DIEGO Cox California Telcom LLC - CA
858-286 California
858-287 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-288 California
858-289 San Diego Pacific Bell - Ca
858-291 SAN DIEGO T-Mobile USA Inc
858-292 San Diego, CA Pacific Bell
858-295 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-297 Del Mar, CA North County Communications Corp.
858-299 SAN DIEGO Neutral Tandem-California LLC - CA
858-300 San Diego, CA U.s. Telepacific Corp.
858-302 San Diego Network Services Llc
858-304 Rancho Bernardo, CA AT&T Local
858-307 California
858-309 San Diego, CA Tw Telecom Of California Lp
858-312 Rancho Bernardo, CA Cox California Telcom, L.l.c.
858-314 Del Mar, CA Teleport Communications America
858-320 La Jolla, CA Pacific Bell
858-322 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-324 San Diego, CA Teleport Communications America
858-329 SAN DIEGO Bandwidth.com CLEC LLC - CA
858-332 La Jolla, CA Tw Telecom Of California Lp
858-333 La Jolla, CA Telcentris Communications
858-334 La Jolla, CA Pacific Bell
858-335 Poway, CA New Cingular Wireless PCS
858-336 San Diego, CA New Cingular Wireless PCS
858-337 San Diego, CA New Cingular Wireless PCS
858-342 Del Mar, CA New Cingular Wireless PCS
858-344 San Diego, CA New Cingular Wireless PCS
858-345 Del Mar, CA Cox California Telcom, L.l.c.
858-346 San Diego, CA Global Crossing Local Services-ca
858-347 Del Mar, CA Usa Mobility Wireless
858-348 San Diego, CA Xo California
858-349 San Diego, CA New Cingular Wireless PCS
858-350 Del Mar, CA Pacific Bell
858-351 Del Mar Network Services Llc
858-352 San Diego, CA Mci Worldcom Communications, Ca
858-353 Del Mar, CA New Cingular Wireless PCS
858-354 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-356 Del Mar, CA Mpower Communications Corp
858-357 San Diego, CA Tw Telecom Of California Lp
858-359 San Diego, CA American Messaging (am)
858-360 San Diego, CA Pacific Bell
858-361 La Jolla, CA New Cingular Wireless PCS
858-362 La Jolla, CA Xo California
858-363 San Diego At&t - Local - Ca
858-364 San Diego, CA North County Communications Corp.
858-365 San Diego, CA O1 Communications
858-366 San Diego, CA Xo California
858-367 Rancho Santa Fe, CA O1 Communications
858-368 San Diego, CA O1 Communications
858-369 Del Mar, CA AT&T Local
858-371 San Diego, CA Cox California Telcom, L.l.c.
858-373 La Jolla, CA Xo California
858-375 San Diego, CA Mpower Communications Corp
858-376 Rancho Bernardo, CA Mpower Communications Corp
858-378 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-380 San Diego, CA Tw Telecom Of California Lp
858-381 San Diego, CA Teleport Communications America
858-382 Poway, CA New Cingular Wireless PCS
858-384 San Diego, CA Global Crossing Local Services-ca
858-385 Rancho Bernardo, CA Pacific Bell
858-386 San Diego, CA Tw Telecom Of California Lp
858-391 Poway, CA Pacific Bell
858-395 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-397 San Diego, CA Cox California Telcom, L.l.c.
858-400 San Diego, CA U.s. Telepacific Corp.
858-401 La Jolla, CA Teleport Communications America
858-404 La Jolla, CA Pacific Bell
858-405 La Jolla, CA T-mobile Usa
858-408 San Diego, CA Xo California
858-410 San Diego, CA Mci Worldcom Communications, Ca
858-412 La Jolla, CA Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl
858-413 Poway, CA Mpower Communications Corp
858-414 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-427 San Diego, CA Paetec Communications
858-428 San Diego, CA Pac - West Telecomm
858-429 San Diego, CA O1 Communications
858-430 San Diego, CA Xo California
858-431 San Diego, CA AT&T Local
858-432 San Diego, CA Mpower Communications Corp
858-433 San Diego, CA Paetec Communications
858-434 San Diego, CA Xo California
858-435 Poway, CA Paetec Communications
858-436 San Diego, CA U.s. Telepacific Corp.
858-437 San Diego, CA Pacific Bell
858-440 San Diego Network Services Llc
858-442 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-444 San Diego, CA U.s. Telepacific Corp.
858-449 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-450 La Jolla, CA Pacific Bell
858-451 Rancho Bernardo, CA Pacific Bell
858-452 La Jolla, CA Pacific Bell
858-453 La Jolla, CA Pacific Bell
858-454 La Jolla, CA Pacific Bell
858-455 La Jolla, CA Pacific Bell
858-456 La Jolla, CA Pacific Bell
858-457 La Jolla, CA Pacific Bell
858-458 La Jolla, CA Pacific Bell
858-459 La Jolla, CA Pacific Bell
858-461 Del Mar, CA Level 3 Communications
858-465 Del Mar, CA Level 3 Communications
858-467 San Diego, CA Pacific Bell
858-471 California
858-472 Rancho Bernardo, CA Cellco Partnership DBA Verizon Wireless
858-480 San Diego, CA Tw Telecom Of California Lp
858-481 Del Mar, CA Pacific Bell
858-483 La Jolla, CA Pacific Bell
858-484 San Diego, CA Pacific Bell
858-485 Rancho Bernardo, CA Pacific Bell
858-486 Poway, CA Pacific Bell
858-487 Rancho Bernardo, CA Pacific Bell
858-488 La Jolla, CA Pacific Bell
858-490 La Jolla, CA Pacific Bell
858-492 San Diego, CA Pacific Bell
858-493 San Diego, CA American Messaging (am)
858-494 San Diego, CA American Messaging (am)
858-495 San Diego, CA Pacific Bell
858-496 San Diego, CA Pacific Bell
858-499 San Diego, CA Pacific Bell
858-500 San Diego, CA Cf Communications DBA Telekenex
858-502 San Diego, CA Pacific Bell
858-503 San Diego, CA Pacific Bell
858-504 Rancho Santa Fe, CA T-mobile Usa
858-505 San Diego, CA Pacific Bell
858-509 Del Mar, CA Pacific Bell
858-513 Poway, CA Pacific Bell
858-514 San Diego, CA Pacific Bell
858-518 San Diego, CA Sprint Spectrum L.p.
858-519 San Diego, CA Mpower Communications Corp
858-521 Rancho Bernardo, CA Pacific Bell
858-522 San Diego, CA Pacific Bell
858-523 Del Mar, CA Pacific Bell
858-524 Del Mar, CA Pacific Bell
858-525 La Jolla, CA Pacific Bell
858-526 La Jolla, CA Pacific Bell
858-527 San Diego, CA Pacific Bell
858-529 San Diego, CA Cf Communications DBA Telekenex
858-530 San Diego, CA Pacific Bell
858-531 La Jolla, CA New Cingular Wireless PCS
858-534 La Jolla, CA Pacific Bell
858-535 La Jolla, CA Pacific Bell
858-536 San Diego, CA Pacific Bell
858-537 San Diego, CA Pacific Bell
858-538 San Diego, CA Pacific Bell
858-539 La Jolla, CA Pacific Bell
858-541 San Diego, CA Pacific Bell
858-546 La Jolla, CA Pacific Bell
858-547 San Diego, CA Pacific Bell
858-549 San Diego, CA Pacific Bell
858-550 La Jolla, CA Pacific Bell
858-551 La Jolla, CA Pacific Bell
858-552 La Jolla, CA Pacific Bell
858-554 La Jolla, CA Pacific Bell
858-555 San Diego Pacific Bell
858-558 La Jolla, CA Pacific Bell
858-560 San Diego, CA Pacific Bell
858-564 San Diego, CA Mpower Communications Corp
858-565 San Diego, CA Pacific Bell
858-566 San Diego, CA Pacific Bell
858-568 La Jolla, CA Leap Wireless Intl DBA Cricket Comm
858-569 San Diego, CA Pacific Bell
858-570 San Diego Pacific Bell - Ca
858-571 San Diego, CA Pacific Bell
858-573 San Diego, CA Pacific Bell
858-576 San Diego, CA Pacific Bell
858-577 San Diego, CA Pacific Bell
858-578 San Diego, CA Pacific Bell
858-581 La Jolla, CA Pacific Bell
858-583 San Diego, CA Sprint Spectrum L.p.
858-586 San Diego, CA Pacific Bell
858-587 La Jolla, CA Pacific Bell
858-592 Rancho Bernardo, CA Pacific Bell
858-597 La Jolla, CA Pacific Bell
858-598 San Diego, CA Teleport Communications America
858-600 San Diego, CA American Messaging (am)
858-602 Poway, CA Sprint Spectrum L.p.
858-603 San Diego, CA New Cingular Wireless PCS
858-605 Rancho Bernardo, CA Paetec Communications
858-609 San Diego, CA Mci Worldcom Communications, Ca
858-610 San Diego, CA T-mobile Usa
858-613 Rancho Bernardo, CA Pacific Bell
858-614 San Diego, CA Pacific Bell
858-616 San Diego, CA Pacific Bell
858-617 San Diego, CA Tw Telecom Of California Lp
858-618 Rancho Bernardo, CA Pacific Bell
858-621 San Diego, CA Pacific Bell
858-622 La Jolla, CA Pacific Bell
858-623 La Jolla, CA Pacific Bell
858-625 La Jolla, CA Pacific Bell
858-626 La Jolla, CA Pacific Bell
858-627 San Diego, CA Pacific Bell
858-630 San Diego, CA Pac - West Telecomm
858-633 San Diego, CA AT&T Local
858-634 San Diego, CA Cox California Telcom, L.l.c.
858-635 San Diego, CA Pacific Bell
858-636 San Diego, CA Pacific Bell
858-637 San Diego, CA Pacific Bell
858-638 La Jolla, CA Pacific Bell
858-642 La Jolla, CA Pacific Bell
858-643 La Jolla, CA Pacific Bell
858-646 La Jolla, CA Pacific Bell
858-648 California
858-649 San Diego, CA Tw Telecom Of California Lp
858-650 San Diego, CA Pacific Bell
858-651 La Jolla, CA Tw Telecom Of California Lp
858-652 San Diego, CA Sprint Spectrum L.p.
858-653 San Diego, CA Pacific Bell
858-654 San Diego, CA Pacific Bell
858-655 Rancho Bernardo, CA Pacific Bell
858-657 La Jolla, CA Pacific Bell
858-658 La Jolla, CA Pacific Bell
858-663 San Diego, CA Sprint Spectrum L.p.
858-666 San Diego, CA Cf Communications DBA Telekenex
858-668 Poway, CA Pacific Bell
858-672 San Diego, CA Pacific Bell
858-673 Rancho Bernardo, CA Pacific Bell
858-674 Rancho Bernardo, CA Pacific Bell
858-675 Rancho Bernardo, CA Pacific Bell
858-676 Rancho Bernardo, CA Pacific Bell
858-677 La Jolla, CA Pacific Bell
858-678 La Jolla, CA Pacific Bell
858-679 Poway, CA Pacific Bell
858-682 San Diego, CA Sprint Spectrum L.p.
858-683 Rancho Bernardo, CA Pac - West Telecomm
858-684 San Diego, CA Pacific Bell
858-688 San Diego, CA Sprint Spectrum L.p.
858-689 San Diego, CA Pacific Bell
858-692 La Jolla, CA Cellco Partnership DBA Verizon Wireless
858-693 San Diego, CA Pacific Bell
858-694 San Diego, CA Pacific Bell
858-695 San Diego, CA Pacific Bell
858-699 La Jolla, CA New Cingular Wireless PCS
858-703 Del Mar, CA Mci Worldcom Communications, Ca
858-704 San Diego, CA Xo California
858-705 San Diego, CA New Cingular Wireless PCS
858-707 San Diego, CA Mpower Communications Corp
858-712 San Diego, CA Mci Worldcom Communications, Ca
858-713 San Diego, CA Mpower Communications Corp
858-715 San Diego, CA Pacific Bell
858-716 San Diego, CA Mci Worldcom Communications, Ca
858-717 San Diego, CA T-mobile Usa
858-720 Del Mar, CA Pacific Bell
858-722 Poway, CA New Cingular Wireless PCS
858-724 San Diego, CA Xo California
858-726 San Diego, CA Xo California
858-728 San Diego, CA Usa Mobility Wireless
858-729 La Jolla, CA Pacific Bell
858-730 Poway Arch Wireless Holdings, Inc.
858-731 San Diego, CA Mci Worldcom Communications, Ca
858-732 SAN DIEGO Cellco Partnership dba Verizon Wireless - CA
858-733 San Diego, CA T-mobile Usa
858-735 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-736 La Jolla, CA Tw Telecom Of California Lp
858-737 San Diego, CA Mci Worldcom Communications, Ca
858-740 San Diego, CA AT&T Local
858-746 San Diego, CA Tw Telecom Of California Lp
858-748 Poway, CA Pacific Bell
858-750 La Jolla, CA Cellco Partnership DBA Verizon Wireless
858-751 San Diego, CA Mpower Communications Corp
858-752 San Diego, CA T-mobile Usa
858-753 San Diego, CA Xo California
858-754 La Jolla, CA Tw Telecom Of California Lp
858-755 Del Mar, CA Pacific Bell
858-756 Rancho Santa Fe, CA Pacific Bell
858-759 Rancho Santa Fe, CA Pacific Bell
858-761 San Diego, CA Xo California
858-762 San Diego, CA Global Crossing Local Services-ca
858-763 San Diego, CA American Messaging Services
858-764 Del Mar, CA Paetec Communications
858-766 La Jolla, CA Neutral Tandem-california
858-768 San Diego, CA Cox California Telcom, L.l.c.
858-769 San Diego, CA Pac - West Telecomm
858-771 Rancho Santa Fe, CA Sbc Internet Services
858-772 San Diego Metrocall
858-774 San Diego, CA New Cingular Wireless PCS
858-775 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-776 Rancho Bernardo, CA T-mobile Usa
858-777 San Diego, CA Pac - West Telecomm
858-779 San Diego, CA Tw Telecom Of California Lp
858-780 San Diego, CA Pacific Bell
858-781 San Diego Allegiance Telecom, Inc. - Ca
858-784 La Jolla, CA Pacific Bell
858-790 San Diego, CA Teleport Communications America
858-792 Del Mar, CA Pacific Bell
858-793 Del Mar, CA Pacific Bell
858-794 Del Mar, CA Pacific Bell
858-795 La Jolla, CA Teleport Communications America
858-798 San Diego, CA Tw Telecom Of California Lp
858-799 San Diego, CA Mci Worldcom Communications, Ca
858-800 San Diego, CA Vaya Telecom
858-805 San Diego, CA Tw Telecom Of California Lp
858-810 San Diego, CA Teleport Communications America
858-812 La Jolla, CA Teleport Communications America
858-815 Rancho Bernardo, CA Pac - West Telecomm
858-822 La Jolla, CA Pacific Bell
858-824 La Jolla, CA Pacific Bell
858-826 La Jolla, CA Pacific Bell
858-829 San Diego, CA Sprint Spectrum L.p.
858-831 San Diego, CA Pacific Bell
858-832 Rancho Santa Fe, CA Cox California Telcom, L.l.c.
858-834 San Diego, CA Global Crossing Local Services-ca
858-836 San Diego, CA Xo California
858-837 San Diego, CA New Cingular Wireless PCS
858-842 Poway, CA Cox California Telcom, L.l.c.
858-845 La Jolla, CA Tw Telecom Of California Lp
858-847 Del Mar, CA Pacific Bell
858-848 Poway, CA Teleport Communications America
858-853 San Diego Pacific Bell
858-856 San Diego, CA Network Services LLC (tsr)
858-859 Poway, CA Mci Worldcom Communications, Ca
858-860 San Diego, CA Mpower Communications Corp
858-863 San Diego, CA Global Crossing Local Services-ca
858-864 San Diego, CA Sprint Spectrum L.p.
858-866 La Jolla, CA Mpower Communications Corp
858-868 California
858-869 San Diego, CA Mpower Communications Corp
858-874 San Diego, CA Pacific Bell
858-875 San Diego, CA U.s. Telepacific Corp.
858-876 Del Mar, CA Global Crossing Local Services-ca
858-877 San Diego, CA Mci Worldcom Communications, Ca
858-879 Rancho Bernardo, CA Mci Worldcom Communications, Ca
858-880 San Diego, CA Mci Worldcom Communications, Ca
858-882 La Jolla, CA Tw Telecom Of California Lp
858-883 San Diego, CA Sprint Spectrum L.p.
858-886 La Jolla, CA Pacific Bell
858-888 San Diego, CA Telcentris Communications
858-900 San Diego, CA Cf Communications DBA Telekenex
858-901 San Diego, CA Xo California
858-905 San Diego, CA Mci Worldcom Communications, Ca
858-909 La Jolla, CA Pacific Bell
858-914 Rancho Santa Fe, CA Level 3 Communications
858-922 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-923 Rancho Santa Fe, CA Pac - West Telecomm
858-924 Rancho Bernardo, CA Pacific Bell
858-925 San Diego, CA O1 Communications
858-926 San Diego, CA O1 Communications
858-927 Rancho Bernardo, CA O1 Communications
858-935 San Diego, CA Xo California
858-939 San Diego, CA Pacific Bell
858-942 San Diego, CA Teleport Communications America
858-943 San Diego, CA Tw Telecom Of California Lp
858-945 San Diego, CA Cellco Partnership DBA Verizon Wireless
858-946 San Diego, CA Xo California
858-947 Del Mar, CA Pac - West Telecomm
858-949 San Diego, CA American Messaging (am)
858-951 Rancho Santa Fe, CA Global Crossing Local Services-ca
858-952 La Jolla, CA Level 3 Communications
858-956 Poway, CA Pac - West Telecomm
858-964 San Diego, CA Paetec Communications
858-966 San Diego, CA Pacific Bell
858-967 San Diego, CA Sprint Spectrum L.p.
858-974 San Diego, CA Pacific Bell
858-987 SAN DIEGO New Cingular Wireless PCS LLC
858-997 La Jolla, CA Cellco Partnership DBA Verizon Wireless
858-998 Poway Network Services Llc (Tsr)
858-999 San Diego, CA Cf Communications DBA Telekenex