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Area Code Detail

Area Code 628

California (San Francisco) and Marin County · In service since March 21, 2015

CA
Reports, 30 Days 213

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

Reports, 180 Days 919

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 207

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

Carriers / Assignees 44

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

Cities / Rate Centers 14

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

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Overview

What this area code covers

California (San Francisco) and Marin County

overlaid on 415

Common cities and rate centers

Belvedere Corte Madera Ignacio Inverness Mill Valley Nicasio Novato Point Reyes San Francisco:central Da San Francisco:juniper Da San Francisco:montrose-evergreen Da San Rafael Sausalito Stinson Beach-bolinas

Top carriers and assignees

  • ONVOY, LLC - CA · 473 routing rows
  • T-MOBILE USA, INC. · 343 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 204 routing rows
  • TELEPORT COMMUNICATIONS AMERICA, LLC - CA · 171 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 154 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC · 135 routing rows
  • FRACTEL, LLC · 89 routing rows
  • ONVOY SPECTRUM, LLC · 82 routing rows
  • LEVEL 3 COMMUNICATIONS, LLC - CA · 75 routing rows
  • PEERLESS NETWORK OF CALIFORNIA, LLC - CA · 65 routing rows
  • COMMIO, LLC · 44 routing rows
  • SONIC TELECOM, LLC - CA · 35 routing rows
NPA-NXX

Prefix directory inside area code 628

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
628-200-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-201-XXXX SNFC CNTRL San Francisco:central Da CA
628-202-XXXX BELVEDERE Belvedere CA
628-203-XXXX STNSN-BLNS Stinson Beach-bolinas CA
628-204-XXXX NICASIO Nicasio CA
628-205-XXXX SNFC CNTRL San Francisco:central Da CA
628-206-XXXX SNFC CNTRL San Francisco:central Da CA
628-207-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-208-XXXX SNFC CNTRL San Francisco:central Da CA
628-209-XXXX NOVATO Novato CA
628-210-XXXX INVERNESS Inverness CA
628-211-XXXX CA
628-212-XXXX CORTEMADRA Corte Madera CA
628-213-XXXX SNFC CNTRL San Francisco:central Da CA
628-214-XXXX NOVATO Novato CA
628-215-XXXX MILLVALLEY Mill Valley CA
628-216-XXXX POINTREYES Point Reyes CA
628-217-XXXX SNFC CNTRL San Francisco:central Da CA
628-218-XXXX SNFC CNTRL San Francisco:central Da CA
628-219-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-220-XXXX SNFC CNTRL San Francisco:central Da CA
628-221-XXXX SNFC CNTRL San Francisco:central Da CA
628-222-XXXX SNFC CNTRL San Francisco:central Da CA
628-223-XXXX SNFC CNTRL San Francisco:central Da CA
628-224-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-225-XXXX SNFC CNTRL San Francisco:central Da CA
628-226-XXXX BELVEDERE Belvedere CA
628-227-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-228-XXXX SNFC CNTRL San Francisco:central Da CA
628-229-XXXX POINTREYES Point Reyes CA
628-230-XXXX SNFC CNTRL San Francisco:central Da CA
628-231-XXXX SNFC CNTRL San Francisco:central Da CA
628-232-XXXX INVERNESS Inverness CA
628-233-XXXX SNFC CNTRL San Francisco:central Da CA
628-234-XXXX SAN RAFAEL San Rafael CA
628-235-XXXX SNFC CNTRL San Francisco:central Da CA
628-236-XXXX NOVATO Novato CA
628-237-XXXX SAUSALITO Sausalito CA
628-238-XXXX IGNACIO Ignacio CA
628-239-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-240-XXXX SAN RAFAEL San Rafael CA
628-241-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-242-XXXX SNFC CNTRL San Francisco:central Da CA
628-243-XXXX SAN RAFAEL San Rafael CA
628-244-XXXX BELVEDERE Belvedere CA
628-245-XXXX MILLVALLEY Mill Valley CA
628-246-XXXX SNFC CNTRL San Francisco:central Da CA
628-247-XXXX SNFC CNTRL San Francisco:central Da CA
628-248-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-249-XXXX SNFC CNTRL San Francisco:central Da CA
628-250-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-251-XXXX SNFC CNTRL San Francisco:central Da CA
628-252-XXXX CORTEMADRA Corte Madera CA
628-253-XXXX SAN RAFAEL San Rafael CA
628-254-XXXX SAUSALITO Sausalito CA
628-255-XXXX SNFC CNTRL San Francisco:central Da CA
628-256-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-257-XXXX MILLVALLEY Mill Valley CA
628-258-XXXX NICASIO Nicasio CA
628-259-XXXX IGNACIO Ignacio CA
628-260-XXXX SNFC CNTRL San Francisco:central Da CA
628-261-XXXX SAUSALITO Sausalito CA
628-262-XXXX BELVEDERE Belvedere CA
628-263-XXXX SNFC CNTRL San Francisco:central Da CA
628-264-XXXX SNFC CNTRL San Francisco:central Da CA
628-265-XXXX INVERNESS Inverness CA
628-266-XXXX CORTEMADRA Corte Madera CA
628-267-XXXX SNFC CNTRL San Francisco:central Da CA
628-268-XXXX SNFC CNTRL San Francisco:central Da CA
628-269-XXXX SAN RAFAEL San Rafael CA
628-270-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-271-XXXX SNFC CNTRL San Francisco:central Da CA
628-272-XXXX POINTREYES Point Reyes CA
628-273-XXXX SNFC CNTRL San Francisco:central Da CA
628-274-XXXX SNFC CNTRL San Francisco:central Da CA
628-275-XXXX SNFC CNTRL San Francisco:central Da CA
628-276-XXXX SNFC CNTRL San Francisco:central Da CA
628-277-XXXX SAN RAFAEL San Rafael CA
628-278-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-279-XXXX SAUSALITO Sausalito CA
628-280-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-281-XXXX SNFC CNTRL San Francisco:central Da CA
628-282-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-283-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-284-XXXX SNFC CNTRL San Francisco:central Da CA
628-285-XXXX SAN RAFAEL San Rafael CA
628-286-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-287-XXXX SNFC CNTRL San Francisco:central Da CA
628-288-XXXX MILLVALLEY Mill Valley CA
628-289-XXXX SNFC CNTRL San Francisco:central Da CA
628-290-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-291-XXXX MILLVALLEY Mill Valley CA
628-292-XXXX BELVEDERE Belvedere CA
628-293-XXXX NICASIO Nicasio CA
628-294-XXXX NOVATO Novato CA
628-295-XXXX SAN RAFAEL San Rafael CA
628-296-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-297-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-298-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-299-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-300-XXXX SNFC CNTRL San Francisco:central Da CA
628-301-XXXX NOVATO Novato CA
628-302-XXXX CORTEMADRA Corte Madera CA
628-303-XXXX SNFC CNTRL San Francisco:central Da CA
628-304-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-305-XXXX SAN RAFAEL San Rafael CA
628-306-XXXX SNFC CNTRL San Francisco:central Da CA
628-307-XXXX IGNACIO Ignacio CA
628-308-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-309-XXXX SNFC CNTRL San Francisco:central Da CA
628-310-XXXX BELVEDERE Belvedere CA
628-311-XXXX CA
628-312-XXXX SNFC CNTRL San Francisco:central Da CA
628-313-XXXX SAN RAFAEL San Rafael CA
628-314-XXXX SAN RAFAEL San Rafael CA
628-315-XXXX BELVEDERE Belvedere CA
628-316-XXXX SNFC CNTRL San Francisco:central Da CA
628-317-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-318-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-319-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-320-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-321-XXXX SNFC CNTRL San Francisco:central Da CA
628-322-XXXX SNFC CNTRL San Francisco:central Da CA
628-323-XXXX SNFC CNTRL San Francisco:central Da CA
628-324-XXXX SNFC CNTRL San Francisco:central Da CA
628-325-XXXX SNFC CNTRL San Francisco:central Da CA
628-326-XXXX SNFC CNTRL San Francisco:central Da CA
628-327-XXXX SAN RAFAEL San Rafael CA
628-328-XXXX SNFC CNTRL San Francisco:central Da CA
628-329-XXXX SAUSALITO Sausalito CA
628-333-XXXX SNFC CNTRL San Francisco:central Da CA
628-335-XXXX SNFC CNTRL San Francisco:central Da CA
628-336-XXXX SAN RAFAEL San Rafael CA
628-338-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-345-XXXX POINTREYES Point Reyes CA
628-348-XXXX BELVEDERE Belvedere CA
628-356-XXXX NICASIO Nicasio CA
628-358-XXXX SNFC CNTRL San Francisco:central Da CA
628-363-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-377-XXXX IGNACIO Ignacio CA
628-386-XXXX CORTEMADRA Corte Madera CA
628-388-XXXX INVERNESS Inverness CA
628-399-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-400-XXXX SNFC CNTRL San Francisco:central Da CA
628-411-XXXX CA
628-415-XXXX CA
628-432-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-433-XXXX IGNACIO Ignacio CA
628-444-XXXX SNFC CNTRL San Francisco:central Da CA
628-465-XXXX SAUSALITO Sausalito CA
628-466-XXXX SNFC CNTRL San Francisco:central Da CA
628-468-XXXX SNFC CNTRL San Francisco:central Da CA
628-477-XXXX MILLVALLEY Mill Valley CA
628-488-XXXX SNFC CNTRL San Francisco:central Da CA
628-500-XXXX SAN RAFAEL San Rafael CA
628-502-XXXX SNFC CNTRL San Francisco:central Da CA
628-511-XXXX CA
628-529-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-555-XXXX DIR ASST CA
628-561-XXXX STNSN-BLNS Stinson Beach-bolinas CA
628-577-XXXX NICASIO Nicasio CA
628-587-XXXX NOVATO Novato CA
628-588-XXXX SNFC CNTRL San Francisco:central Da CA
628-600-XXXX SNFC CNTRL San Francisco:central Da CA
628-611-XXXX CA
628-626-XXXX SNFC CNTRL San Francisco:central Da CA
628-628-XXXX SNFC CNTRL San Francisco:central Da CA
628-629-XXXX SNFC CNTRL San Francisco:central Da CA
628-652-XXXX SNFC CNTRL San Francisco:central Da CA
628-666-XXXX IGNACIO Ignacio CA
628-667-XXXX SAN RAFAEL San Rafael CA
628-677-XXXX MILLVALLEY Mill Valley CA
628-682-XXXX NOVATO Novato CA
628-688-XXXX SNFC CNTRL San Francisco:central Da CA
628-699-XXXX SAUSALITO Sausalito CA
628-700-XXXX CA
628-711-XXXX CA
628-724-XXXX BELVEDERE Belvedere CA
628-726-XXXX SNFC CNTRL San Francisco:central Da CA
628-732-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-754-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-758-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-766-XXXX STNSN-BLNS Stinson Beach-bolinas CA
628-777-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-786-XXXX SNFC JUNPR San Francisco:juniper Da CA
628-788-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-789-XXXX SNFC CNTRL San Francisco:central Da CA
628-800-XXXX SNFC CNTRL San Francisco:central Da CA
628-811-XXXX CA
628-842-XXXX CORTEMADRA Corte Madera CA
628-866-XXXX BELVEDERE Belvedere CA
628-867-XXXX SNFC CNTRL San Francisco:central Da CA
628-877-XXXX CORTEMADRA Corte Madera CA
628-888-XXXX SAN RAFAEL San Rafael CA
628-895-XXXX SNFC CNTRL San Francisco:central Da CA
628-899-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-900-XXXX SNFC CNTRL San Francisco:central Da CA
628-911-XXXX CA
628-946-XXXX SNFC CNTRL San Francisco:central Da CA
628-950-XXXX CA
628-958-XXXX CA
628-959-XXXX CA
628-976-XXXX CA
628-977-XXXX SNFC MT-EV San Francisco:montrose-evergreen Da CA
628-997-XXXX SNFC CNTRL San Francisco:central Da CA
628-998-XXXX SNFC CNTRL San Francisco:central Da CA
628-999-XXXX SNFC CNTRL San Francisco:central Da CA
Recent Signals

Latest complaint activity tied to 628

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

FTC report from Gualala, CALIFORNIA

April 29, 2026 at 7:21 PM

628-345-1252 was logged as a live voice. Violation date: April 29, 2026 at 1:13 PM.

FTC report from Tucson, ARIZONA

April 29, 2026 at 5:53 PM

628-251-1531 was logged as a unwanted call. Category: Dropped call or no message. Violation date: April 28, 2026 at 2:41 PM.

FTC report from San Jose, CALIFORNIA

April 29, 2026 at 4:04 PM

628-215-9384 was logged as a live voice. Violation date: April 22, 2026 at 1:01 PM.

FTC report from Mill Valley, CALIFORNIA

April 29, 2026 at 3:57 PM

628-290-5902 was logged as a robocall. Violation date: April 28, 2026 at 8:03 AM.

FTC report from CALIFORNIA

April 29, 2026 at 12:30 PM

628-386-3514 was logged as a robocall. Violation date: April 29, 2026 at 7:00 AM.

FTC report from New York, NEW YORK

April 29, 2026 at 12:13 PM

628-399-9123 was logged as a robocall. Violation date: April 29, 2026 at 12:07 PM.

FTC report from Arlington, VIRGINIA

April 29, 2026 at 2:50 AM

628-201-1248 was logged as a live voice. Violation date: April 28, 2026 at 11:44 AM.

FTC report from Damascus, OREGON

April 28, 2026 at 6:30 PM

628-399-7304 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 28, 2026 at 2:39 PM.

FTC report from Seattle, WASHINGTON

April 28, 2026 at 4:18 PM

628-215-1170 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 27, 2026 at 12:00 PM.

FTC report from Longmont, COLORADO

April 28, 2026 at 3:30 PM

628-245-9842 was logged as a robocall. Violation date: April 28, 2026 at 1:12 PM.

FTC report from Kansas City, KANSAS

April 28, 2026 at 3:11 PM

628-477-7526 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 28, 2026 at 12:00 PM.

FTC report from Kittery, MAINE

April 28, 2026 at 1:26 PM

628-389-9808 was logged as a robocall. Violation date: April 28, 2026 at 1:25 PM.

FTC report from CALIFORNIA

April 27, 2026 at 6:55 PM

This report was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: March 30, 2026 at 12:00 AM.

FTC report from NEW MEXICO

April 27, 2026 at 6:37 PM

628-628-2094 was logged as a live voice. Violation date: April 18, 2026 at 11:00 AM.

FTC report from Vallejo, CALIFORNIA

April 27, 2026 at 5:05 PM

628-296-1217 was logged as a live voice. Category: Dropped call or no message. Violation date: April 25, 2026 at 7:08 PM.

FTC report from Valencia, CALIFORNIA

April 27, 2026 at 5:01 PM

628-777-7998 was logged as a robocall. Violation date: April 7, 2026 at 3:01 PM.

FTC report from Panama City, FLORIDA

April 27, 2026 at 2:57 PM

628-259-8222 was logged as a robocall. Violation date: April 27, 2026 at 12:15 PM.

FTC report from El Paso, TEXAS

April 27, 2026 at 2:40 PM

628-766-3877 was logged as a robocall. Violation date: April 27, 2026 at 12:24 PM.

FTC report from IOWA

April 27, 2026 at 2:15 PM

628-265-3408 was logged as a robocall. Violation date: April 27, 2023 at 1:14 PM.

FTC report from ARIZONA

April 27, 2026 at 1:36 PM

628-278-4467 was logged as a unwanted call. Category: No Subject Provided. Violation date: April 27, 2026 at 12:00 AM.

FTC report from TENNESSEE

April 27, 2026 at 11:41 AM

628-273-1346 was logged as a robocall. Category: No Subject Provided. Violation date: April 27, 2026 at 9:36 AM.

FTC report from Woodland Hills, CALIFORNIA

April 26, 2026 at 5:03 PM

This report was logged as a robocall. Violation date: April 23, 2026 at 5:43 PM.

FTC report from Vancouver, WASHINGTON

April 26, 2026 at 12:12 PM

628-333-8671 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 8, 2026 at 10:48 AM.

FTC report from CALIFORNIA

April 25, 2026 at 3:40 PM

628-270-8528 was logged as a live voice. Violation date: April 25, 2026 at 12:34 PM.

FTC report from Issaquah, WASHINGTON

April 24, 2026 at 7:08 PM

628-268-7488 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 24, 2026 at 4:02 PM.

FTC report from Chicago, ILLINOIS

April 24, 2026 at 2:31 PM

628-488-8641 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 24, 2026 at 1:27 PM.

FTC report from Nj, NEW JERSEY

April 24, 2026 at 2:17 PM

This report was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 24, 2026 at 12:00 PM.

FTC report from Fremont, CALIFORNIA

April 24, 2026 at 1:57 PM

628-264-6408 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 24, 2026 at 10:51 AM.

FTC report from OHIO

April 24, 2026 at 9:32 AM

628-667-8773 was logged as a live voice. Category: Dropped call or no message. Violation date: March 31, 2026 at 2:01 PM.

FTC report from CALIFORNIA

April 23, 2026 at 11:32 PM

628-356-7922 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 23, 2026 at 4:09 PM.

FTC report from NEW JERSEY

April 23, 2026 at 5:16 PM

628-246-4995 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 23, 2026 at 3:54 AM.

FTC report from TENNESSEE

April 23, 2026 at 12:35 PM

628-356-7618 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 23, 2026 at 11:03 AM.

FTC report from Novato, CALIFORNIA

April 23, 2026 at 12:08 PM

628-287-0030 was logged as a unwanted call. Category: Dropped call or no message. Violation date: April 23, 2026 at 9:07 AM.

FTC report from Novato, CALIFORNIA

April 22, 2026 at 9:33 PM

628-287-0022 was logged as a unwanted call. Category: Dropped call or no message. Violation date: April 22, 2026 at 6:32 PM.

FTC report from CALIFORNIA

April 22, 2026 at 6:54 PM

628-277-8892 was logged as a robocall. Violation date: April 22, 2026 at 3:42 PM.

FTC report from Anaheim, CALIFORNIA

April 22, 2026 at 6:18 PM

628-285-2055 was logged as a robocall. Category: Dropped call or no message. Violation date: April 22, 2026 at 11:16 AM.

FTC report from CALIFORNIA

April 22, 2026 at 4:44 PM

628-788-8257 was logged as a live voice. Violation date: April 22, 2026 at 12:00 AM.

FTC report from Kansas City, MISSOURI

April 22, 2026 at 4:24 PM

628-216-9578 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 22, 2026 at 2:15 PM.

FTC report from CALIFORNIA

April 22, 2026 at 4:03 PM

628-227-2673 was logged as a robocall. Violation date: April 22, 2026 at 12:57 PM.

FTC report from Novato, CALIFORNIA

April 22, 2026 at 3:08 PM

628-281-0022 was logged as a unwanted call. Category: Dropped call or no message. Violation date: April 22, 2026 at 12:07 PM.