Comcast Corporation
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
