Comcast Corporation Headquarters & Corporate Office

About Comcast Corporation

Comcast Corporation (NASDAQ: CMCSA) is the largest cable operator and home internet provider in the United States — a Philadelphia, Pennsylvania-based global media and technology conglomerate serving more than 32 million residential and business customers across the country. Founded in 1963 in Tupelo, Mississippi by Ralph Roberts, Daniel Aaron, and Julian Brodsky as American Cable Systems, the company was renamed Comcast in 1969 and relocated its headquarters to Philadelphia. Today Comcast is led by Chairman and CEO Brian L. Roberts — son of founder Ralph Roberts — and operates through two primary business segments: Comcast Cable (Xfinity brand residential and business services) and NBCUniversal (broadcast, cable, streaming, film, and theme parks).

Comcast is headquartered at One Comcast Center — the iconic 58-story, 975-foot glass tower at 1701 JFK Boulevard in Philadelphia — the tallest building in Philadelphia and one of the tallest buildings in the United States. Comcast leases over one million square feet of space at Comcast Center and has further expanded its Philadelphia footprint with the adjacent 60-story Comcast Technology Center at 1800 Arch Street — opened in 2018 — creating one of the largest corporate campus footprints in American urban real estate history.

Quick Information

Industry

Telecommunications, Cable TV, Broadband Internet, Media & Entertainment

Founded

1963, Tupelo, Mississippi (as American Cable Systems)

NYSE Ticker

CMCSA

Chairman & CEO

Brian L. Roberts (son of founder Ralph Roberts; CEO since 2002)

Number of Customers

32+ million residential and business customers

Number of Employees

190,000+ worldwide

Annual Revenue

Approximately $123 billion (fiscal 2024)

Website

www.comcast.com (consumer)

Products & Services

Comcast delivers a comprehensive portfolio of consumer, business, and media services through its Xfinity and NBCUniversal brands:

• Xfinity Internet — the nation’s largest residential broadband provider; offering gigabit-speed internet to homes and businesses across 39 states
• Xfinity TV — digital cable television with on-demand content, cloud DVR, and the X1 voice-controlled entertainment platform
• Xfinity Voice — residential and business digital phone service
• Xfinity Mobile — wireless phone service running on Verizon’s network exclusively for Xfinity internet customers
• Xfinity Home Security — smart home security monitoring, cameras, and automation
• NBCUniversal — broadcast (NBC), cable (MSNBC, CNBC, USA, Bravo, E!), film (Universal Pictures), streaming (Peacock), and theme parks (Universal Studios)
• Peacock — Comcast’s direct-to-consumer streaming platform offering live sports, NBC content, and original programming
• Comcast Business — internet, phone, and TV services for small, mid-size, and enterprise business customers
• Sky — Comcast’s European pay-TV and broadband subsidiary operating in the UK, Ireland, Germany, Austria, and Italy

Corporate Phone Numbers

Main Customer Service Number (Xfinity)

1-800-XFINITY (1-800-934-6489) — primary Comcast/Xfinity residential customer service number for billing, technical support, outages, and general account inquiries. Available 24 hours a day, 7 days a week.

Main Customer Service Number (Alternate)

1-800-266-2278 — alternate Comcast customer service toll-free number. Available 24/7.

Comcast Business Customer Service

1-800-391-3000 — dedicated Comcast Business customer service number for small and mid-size business accounts. Available 24/7.

Corporate Headquarters Main Line

1-215-286-1700 — Comcast Corporation corporate headquarters main switchboard at Comcast Center, 1701 JFK Boulevard, Philadelphia, Pennsylvania 19103. Available Monday–Friday 9:00 AM to 5:00 PM ET.

Corporate Fax

1-215-981-7790 — Comcast Corporation corporate headquarters fax line for formal written correspondence.

NBCUniversal (New York)

30 Rockefeller Plaza, New York, NY — NBCUniversal corporate offices; main line via Comcast corporate at 1-215-286-1700.

How to Reach a Real Person

Call 1-800-XFINITY (1-800-934-6489) any time — 24/7 — for the main Xfinity/Comcast customer service team. When the automated system answers, say “representative” or press 0 at any prompt to bypass to a live agent. For Comcast Business accounts, call the dedicated business line at 1-800-391-3000 instead. Have your account number or the phone number associated with your account ready before calling for fastest service.

For written and online support, log in at xfinity.com/support to submit a ticket, chat live with an agent, or schedule a callback. Comcast’s AI assistant Xfinity Assistant is available 24/7 via the Xfinity app and website. Comcast also has a dedicated customer relations team reachable by writing to comcastcorporate@comcast.com. The brand responds to customer messages through its @XfinitySupport account on X (Twitter).

Headquarters & Corporate Office Address

Comcast Corporation has been headquartered in Philadelphia, Pennsylvania since 1969 — and its twin-tower campus at One Comcast Center and Comcast Technology Center has transformed the Philadelphia skyline and downtown core into one of the most recognizable corporate addresses in America. One Comcast Center at 1701 JFK Boulevard — a 58-story, LEED-certified glass tower — has served as Comcast’s primary headquarters since 2008, housing Chairman and CEO Brian L. Roberts and the full corporate leadership team across more than one million square feet of leased space. The adjacent Comcast Technology Center at 1800 Arch Street — opened in 2018 as a 60-story mixed-use tower housing technology, innovation, and the Four Seasons Hotel Philadelphia — further cemented Comcast’s role as the anchor of Philadelphia’s corporate identity. Together, the two towers represent the largest urban corporate campus investment in Philadelphia history.

Comcast Corporation — Global Corporate Headquarters (One Comcast Center)

Comcast Center
1701 John F. Kennedy Boulevard
Philadelphia, Pennsylvania 19103
United States
Phone: 1-215-286-1700

Comcast Technology Center

1800 Arch Street
Philadelphia, Pennsylvania 19103
United States

NBCUniversal — New York Headquarters

30 Rockefeller Plaza
New York, New York 10112
United States

NBCUniversal — Los Angeles / Universal City

100 Universal City Plaza
Universal City, California 91608
United States

Sky — UK Headquarters

Grant Way
Isleworth, Middlesex TW7 5QD
United Kingdom

Comcast — Englewood, CO Office

345 Inverness Drive South
Englewood, Colorado 80112
United States

Comcast — Atlanta Office

3399 Peachtree Road NE
Atlanta, Georgia 30326
United States

Comcast — Miami Office

5555 Biscayne Boulevard
Miami, Florida 33137
United States

Comcast — London Office

Central Saint Giles, 1 St Giles High Street, 2nd Floor
London, WC2H 8AG
United Kingdom

For all formal written customer complaints and corporate correspondence, write to Comcast Corporation, Comcast Center, 1701 John F. Kennedy Boulevard, Philadelphia, Pennsylvania 19103, Attn: Customer Relations. Include your full name, account number, service address, a detailed description of your complaint, all prior contacts made, and the specific resolution you are requesting.

How to File a Complaint Against Comcast

Call 1-800-XFINITY (1-800-934-6489) — available 24/7; ask for a formal case reference number

Chat online or submit a ticket at xfinity.com/support — available 24/7 through the Xfinity Assistant and live chat

Request supervisor escalation — ask to be connected to a supervisor or the Customer Resolution team if the first agent cannot resolve your complaint

Write to corporate headquarters — Comcast Center, 1701 JFK Boulevard, Philadelphia, PA 19103, Attn: Customer Relations

File a BBB complaint at www.bbb.org — Comcast is listed with the BBB’s Philadelphia chapter

File an FCC complaint at fcc.gov/consumers/guides/filing-informal-complaint — the FCC regulates cable and internet providers; complaints require Comcast to respond directly

File a complaint with your state Public Utility Commission — state PUCs regulate cable and telecom services in most states

Contact your state Attorney General — for consumer protection complaints involving deceptive billing, service, or advertising