Area Code Detail

Area Code 628

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

CA
Reports, 30 Days 176

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

Reports, 180 Days 994

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 208

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
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 · 495 routing rows
  • T-MOBILE USA, INC. · 338 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 204 routing rows
  • TELEPORT COMMUNICATIONS AMERICA, LLC - CA · 171 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 155 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC · 134 routing rows
  • FRACTEL, LLC · 90 routing rows
  • ONVOY SPECTRUM, LLC · 84 routing rows
  • LEVEL 3 COMMUNICATIONS, LLC - CA · 75 routing rows
  • PEERLESS NETWORK OF CALIFORNIA, LLC - CA · 64 routing rows
  • COMMIO, LLC · 44 routing rows
  • SONIC TELECOM, LLC - CA · 34 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
628-330-XXXX SAN RAFAEL San Rafael 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 Tiverton, RHODE ISLAND

July 16, 2026 at 8:13 PM

628-259-4112 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: June 16, 2026 at 2:25 PM.

FTC report from Erie, COLORADO

July 16, 2026 at 7:12 PM

628-317-2682 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 12:00 PM.

FTC report from Oxford, WISCONSIN

July 16, 2026 at 7:06 PM

628-317-4160 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 6:00 PM.

FTC report from MICHIGAN

July 16, 2026 at 6:34 PM

628-317-2437 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 10:20 AM.

FTC report from COLORADO

July 16, 2026 at 4:36 PM

628-298-2184 was logged as a robocall. Violation date: July 13, 2026 at 1:21 PM.

FTC report from Houston, TEXAS

July 16, 2026 at 3:42 PM

628-316-1325 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 1:57 PM.

FTC report from TEXAS

July 16, 2026 at 3:15 PM

628-312-9857 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 2:11 PM.

FTC report from Beaumont, CALIFORNIA

July 16, 2026 at 1:57 PM

628-800-0576 was logged as a live voice. Violation date: July 16, 2026 at 4:37 AM.

FTC report from WYOMING

July 16, 2026 at 1:54 PM

628-758-3646 was logged as a live voice. Violation date: July 16, 2026 at 10:43 AM.

FTC report from Waller, TEXAS

July 16, 2026 at 1:46 PM

628-300-2781 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 10:05 AM.

FTC report from Beaumont, CALIFORNIA

July 16, 2026 at 1:36 PM

628-800-0576 was logged as a robocall. Category: Energy, solar, & utilities. Violation date: July 16, 2026 at 4:38 AM.

FTC report from NEW JERSEY

July 15, 2026 at 11:55 PM

628-286-7596 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 16, 2026 at 12:10 AM.

FTC report from Perkasie, PENNSYLVANIA

July 15, 2026 at 6:33 PM

628-316-4429 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 8:14 PM.

FTC report from TENNESSEE

July 15, 2026 at 6:29 PM

628-345-6934 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: July 15, 2026 at 5:59 PM.

FTC report from Willow Street, PENNSYLVANIA

July 15, 2026 at 5:54 PM

628-317-2438 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 9:33 PM.

FTC report from NEW YORK

July 15, 2026 at 5:11 PM

628-358-8329 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 12:00 PM.

FTC report from CALIFORNIA

July 15, 2026 at 4:41 PM

628-215-9492 was logged as a live voice. Category: No Subject Provided. Violation date: July 15, 2026 at 9:25 AM.

FTC report from Corona, CALIFORNIA

July 15, 2026 at 4:39 PM

628-317-2502 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 1:28 PM.

FTC report from Redondo Beach, CALIFORNIA

July 15, 2026 at 4:14 PM

628-219-4359 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 4:40 PM.

FTC report from Al, ALABAMA

July 15, 2026 at 3:58 PM

628-232-7149 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 12:00 PM.

FTC report from Lakeland, FLORIDA

July 15, 2026 at 3:40 PM

628-244-2600 was logged as a live voice. Category: Home improvement & cleaning. Violation date: July 15, 2026 at 3:32 PM.

FTC report from Sugar Land, TEXAS

July 15, 2026 at 1:30 PM

628-358-8073 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 12:17 PM.

FTC report from Mineral Wells, TEXAS

July 15, 2026 at 1:09 PM

628-842-5818 was logged as a robocall. Category: Warranties & protection plans. Violation date: July 15, 2026 at 12:01 PM.

FTC report from Martinez, CALIFORNIA

July 15, 2026 at 12:56 PM

628-237-5447 was logged as a live voice. Category: Home improvement & cleaning. Violation date: July 15, 2026 at 9:53 AM.

FTC report from CALIFORNIA

July 15, 2026 at 12:28 PM

628-316-4546 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 1:26 PM.

FTC report from Yuma, ARIZONA

July 15, 2026 at 12:11 PM

628-215-9856 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 8:36 AM.

FTC report from TEXAS

July 14, 2026 at 9:34 PM

628-243-0049 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 15, 2026 at 12:21 AM.

FTC report from CALIFORNIA

July 14, 2026 at 8:33 PM

628-215-7275 was logged as a live voice. Category: Energy, solar, & utilities. Violation date: July 14, 2026 at 5:27 PM.

FTC report from Seattle, WASHINGTON

July 14, 2026 at 6:25 PM

628-264-4281 was logged as a live voice. Category: Dropped call or no message. Violation date: July 14, 2026 at 3:16 PM.

FTC report from CALIFORNIA

July 14, 2026 at 3:57 PM

628-317-2342 was logged as a live voice. Violation date: July 14, 2026 at 12:00 PM.

FTC report from Okemos, MICHIGAN

July 14, 2026 at 2:38 PM

628-317-2565 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 14, 2026 at 6:02 PM.

FTC report from NEW JERSEY

July 14, 2026 at 1:19 PM

628-317-2449 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 14, 2026 at 5:15 AM.

FTC report from Mckinney, TEXAS

July 14, 2026 at 12:55 PM

628-358-7715 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 14, 2026 at 12:00 PM.

FTC report from Ellicott City, MARYLAND

July 14, 2026 at 12:17 PM

628-358-8424 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 14, 2026 at 4:13 PM.

FTC report from New Port Richey, FLORIDA

July 14, 2026 at 11:03 AM

628-232-1830 was logged as a live voice. Violation date: July 10, 2026 at 10:35 PM.

FTC report from FLORIDA

July 14, 2026 at 8:33 AM

628-268-8559 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: July 13, 2026 at 1:30 PM.

FTC report from FLORIDA

July 14, 2026 at 8:33 AM

628-263-4784 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: July 13, 2026 at 1:27 PM.

FTC report from ALASKA

July 13, 2026 at 10:37 PM

628-214-4095 was logged as a live voice. Violation date: June 15, 2026 at 2:44 PM.

FTC report from ALASKA

July 13, 2026 at 10:32 PM

628-286-2428 was logged as a live voice. Violation date: June 3, 2026 at 11:27 AM.

FTC report from Trezevant, TENNESSEE

July 13, 2026 at 6:43 PM

628-788-8227 was logged as a robocall. Category: Warranties & protection plans. Violation date: July 13, 2026 at 2:59 PM.