Area Code Detail

Area Code 820

California (Ventura, San Luis Obispo, and Santa Barbara Counties) · In service since June 30, 2018

CA
Reports, 30 Days 0

Recent FCC and FTC complaint records tied to this area code.

Reports, 180 Days 0

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 104

Distinct NPA-NXX prefixes surfaced from routing and assignment data.

Carriers / Assignees 35

Named carriers, assignees, or code holders found in routing data.

Cities / Rate Centers 30

Distinct cities or rate centers attached to this area code.

States / Territories 1

Coverage footprint visible from NANPA, pooled block, and Canada routing data.

North American Phone Intelligence

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Overview

What this area code covers

California (Ventura, San Luis Obispo, and Santa Barbara Counties)

overlaid on 805

Common cities and rate centers

Arroyo Grande Atascadero Bradley Camarillo Cayucos Conejo El Rio Fillmore Gaviota Guadalupe Lompoc Los Alamos Newbury Park Nipomo Oak View Oxnard Parkfield Paso Robles

Top carriers and assignees

  • ONVOY, LLC - CA · 230 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC · 211 routing rows
  • T-MOBILE USA, INC. · 116 routing rows
  • FRACTEL, LLC · 90 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 65 routing rows
  • ONVOY SPECTRUM, LLC · 62 routing rows
  • COMMIO, LLC · 44 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 33 routing rows
  • OPENTACT INC. · 11 routing rows
  • PEERLESS NETWORK OF CALIFORNIA, LLC - CA · 10 routing rows
  • LEAP TELECOM, LLC · 10 routing rows
  • 8X8, INC. · 10 routing rows
NPA-NXX

Prefix directory inside area code 820

Each prefix below is collapsed to one primary locality row so you can scan the area code by prefix without the duplicated block-level assignment rows.

Prefix Primary Rate Center Primary City State
820-200-XXXX THOUSAOAKS Thousand Oaks CA
820-201-XXXX OXNARD Oxnard CA
820-202-XXXX SNLUSOBSPO San Luis Obispo CA
820-203-XXXX ATASCADERO Atascadero CA
820-204-XXXX CAMARILLO Camarillo CA
820-205-XXXX NEWBURYPRK Newbury Park CA
820-206-XXXX PASOROBLES Paso Robles CA
820-207-XXXX CAMARILLO Camarillo CA
820-208-XXXX ATASCADERO Atascadero CA
820-209-XXXX GAVIOTA Gaviota CA
820-210-XXXX CAMARILLO Camarillo CA
820-211-XXXX XXXXXXXXXX CA
820-212-XXXX VNTRA EAST Ventura East CA
820-213-XXXX CAMARILLO Camarillo CA
820-214-XXXX NEWBURYPRK Newbury Park CA
820-215-XXXX NEWBURYPRK Newbury Park CA
820-216-XXXX ARROYOGRND Arroyo Grande CA
820-217-XXXX ATASCADERO Atascadero CA
820-218-XXXX LOMPOC Lompoc CA
820-219-XXXX CONEJO Conejo CA
820-220-XXXX PIRU Piru CA
820-221-XXXX SANTAMARIA Santa Maria CA
820-222-XXXX CAMARILLO Camarillo CA
820-223-XXXX SANBARBARA Santa Barbara CA
820-224-XXXX NIPOMO Nipomo CA
820-225-XXXX GUADALUPE Guadalupe CA
820-226-XXXX EL RIO El Rio CA
820-227-XXXX SANTAMARIA Santa Maria CA
820-228-XXXX LOMPOC Lompoc CA
820-229-XXXX SANBARBARA Santa Barbara CA
820-230-XXXX PASOROBLES Paso Robles CA
820-231-XXXX CAMARILLO Camarillo CA
820-232-XXXX NEWBURYPRK Newbury Park CA
820-233-XXXX SNLUSOBSPO San Luis Obispo CA
820-234-XXXX OXNARD Oxnard CA
820-235-XXXX VNTRA CNTL Ventura Central CA
820-236-XXXX SANBARBARA Santa Barbara CA
820-237-XXXX ATASCADERO Atascadero CA
820-238-XXXX CAMARILLO Camarillo CA
820-239-XXXX NEWBURYPRK Newbury Park CA
820-240-XXXX SANBARBARA Santa Barbara CA
820-241-XXXX ATASCADERO Atascadero CA
820-242-XXXX EL RIO El Rio CA
820-243-XXXX CAMARILLO Camarillo CA
820-244-XXXX SANTAMARIA Santa Maria CA
820-245-XXXX SANTAPAULA Santa Paula CA
820-246-XXXX ATASCADERO Atascadero CA
820-247-XXXX NEWBURYPRK Newbury Park CA
820-280-XXXX LOS ALAMOS Los Alamos CA
820-288-XXXX VNTRA EAST Ventura East CA
820-299-XXXX CAMARILLO Camarillo CA
820-300-XXXX GUADALUPE Guadalupe CA
820-311-XXXX XXXXXXXXXX CA
820-333-XXXX THOUSAOAKS Thousand Oaks CA
820-336-XXXX GUADALUPE Guadalupe CA
820-345-XXXX EL RIO El Rio CA
820-346-XXXX ARROYOGRND Arroyo Grande CA
820-348-XXXX OXNARD Oxnard CA
820-356-XXXX POINT MUGU Point Mugu CA
820-380-XXXX PISMOBEACH Pismo Beach CA
820-386-XXXX SIMIVALLEY Simi Valley CA
820-400-XXXX PARKFIELD Parkfield CA
820-411-XXXX XXXXXXXXXX CA
820-426-XXXX CAMARILLO Camarillo CA
820-432-XXXX NEWBURYPRK Newbury Park CA
820-444-XXXX NEWBURYPRK Newbury Park CA
820-465-XXXX OXNARD Oxnard CA
820-500-XXXX GAVIOTA Gaviota CA
820-502-XXXX SIMIVALLEY Simi Valley CA
820-511-XXXX XXXXXXXXXX CA
820-529-XXXX PIRU Piru CA
820-555-XXXX DIR ASST CA
820-587-XXXX SANBARBARA Santa Barbara CA
820-600-XXXX PISMOBEACH Pismo Beach CA
820-611-XXXX XXXXXXXXXX CA
820-666-XXXX SNLUSOBSPO San Luis Obispo CA
820-667-XXXX OXNARD Oxnard CA
820-700-XXXX CA
820-711-XXXX XXXXXXXXXX CA
820-732-XXXX VNTRA CNTL Ventura Central CA
820-758-XXXX SANBARBARA Santa Barbara CA
820-777-XXXX SANTAPAULA Santa Paula CA
820-786-XXXX ATASCADERO Atascadero CA
820-799-XXXX CAMARILLO Camarillo CA
820-800-XXXX CAYUCOS Cayucos CA
820-811-XXXX XXXXXXXXXX CA
820-820-XXXX SANBARBARA Santa Barbara CA
820-822-XXXX OXNARD Oxnard CA
820-823-XXXX SANTA YNEZ Santa Ynez CA
820-837-XXXX OXNARD Oxnard CA
820-842-XXXX OAKVIEW Oak View CA
820-850-XXXX FILLMORE Fillmore CA
820-880-XXXX SANBARBARA Santa Barbara CA
820-888-XXXX SIMIVALLEY Simi Valley CA
820-899-XXXX SANTAMARIA Santa Maria CA
820-900-XXXX BRADLEY Bradley CA
820-911-XXXX XXXXXXXXXX CA
820-946-XXXX SANTAMARIA Santa Maria CA
820-950-XXXX CA
820-958-XXXX CA
820-959-XXXX CA
820-976-XXXX CA
820-998-XXXX ATASCADERO Atascadero CA
820-999-XXXX OXNARD Oxnard CA
Recent Signals

Latest complaint activity tied to 820

Complaint pages are the strongest indexing opportunity for this site right now, especially for exact phone numbers and toll-free exchanges.

No recent complaint records were found for this area code.