Zayo Group is telecom and fiber company. The company is publicly traded on the NYSE under the ticker ZAYO.

Zayo was founded in 2007 and is a provider of Network, Fiber, Cloud and Colocation services. The colocation division is known as zColo.

Zayo Company History:

Zayo has been a skilled acquirer of Fiber, Network, and Data Center companies.


  • Zayo acquired Allstream, a Canadian, telecommunications company that had been in business for 170 years. Initially established as a telegraph service provider over Canada's first transcontinental railroad.
  • Electric Lightwave (ELI) was acquired for $1.42 billion. ELI had previously acquired Integra Telecom


  • Zayo acquired the Fiber and Enterprise divisions of IdeaTek Systems for $52 Million. The acquisition added fiber footprint in Kansas.
  • Zayo acquired Latisys, a data center and IaaS Cloud provider for $675 Million


  • Zayo completed an IPO on the NYSE which raised $278 million providing a market cap of $5
  • Zayo acquired Colo Facilities Atlanta (aka AtlantaNAP)
  • Zayo acquired Neo Telecoms
  • Zayo acquired Geo Networks Ltd
  • Zayo acquired CoreXchange, Inc., a Dallas based data center operator


  • Zayo acquired Core NAP, an Austin based data center operator
  • Zayo acquired Access Communications, Inc for its Minneapolis-St Paul fiber network
  • Zayo acquired FiberLink, a Mid-West dark fiber operator


  • Zayo acquired AboveNet
  • Zayo acquired Arialink for fiber assest in Lansing and Ann Arbor Michigan
  • Zayo acquired FiberGate for fiber assets in the greater Washington DC area
  • Zayo acquired USCarrier
  • Zayo acquired First Telecom Services
  • Zayo acquired Litecast/Balticore for $22 Million


  • Zayo acquired 360networks for $345 Million
  • Zayo acquired MarquisNet data center business in Las Vegas


  • Zayo acquired AGL Networks
  • Zayo acquired American Fiber Solutions
  • Zayo acquired Dolphini’s Cummins Station data centers


  • Zayo acquired FiberNet Telecom Group, Inc


  • Zayo acquired Citynet Fiber Network (CFN), the wholesale division of integrated communications provider, Citynet
  • Zayo acquired Columbia Fiber Solutions
  • Zayo acquired some assets of Adesta Communications
  • Zayo acquired a Fiber network from Northwest Telephone
  • Zayo acquired a Fiber network from CenturyTel


  • Zayo Founded and raised $225 Million in private equity funding.
  • Zayo acquired Memphis Networx
  • Zayo acquired PPL Telecom
  • Zayo acquired Indiana Fiber Works
  • Zayo acquired VoicePipe
  • Zayo acquired Onvoy
Zayo Logo
1805 29th St, Boulder, CO 80301

Dan Caruso

Retail Colocation (Cabinets, Cages, RU)
Company Type:
Owned by a Carrier, but operates as Carrier-Neutral
Cross Connect:
No charge

Zayo News Add Post

Virtus to spend £500m on five data centers across London
British colocation provider Virtus is planning to spend £500 million ($645m) on a network of five...
Read More
Alibaba Cloud to launch London region
China’s favorite e-commerce giant Alibaba is planning the launch of a cloud region in London, two...
Read More
Zayo is continuing to build Fiber in existing markets
It is good to see Zayo's commitment to continue invest and buildout fiber. Dave Jones, EVP...
Read More

Zayo Data Center Map

Zayo Locations

Show Sites
zColo Philadelphia-401 Broad
401 N. Broad Street
Philadelphia, PA
Located in Philadelphia
  • 9,800 Gross SqFt
zColo Santa Clara
5101 Lafayette Street
Santa Clara, CA
Located in San Francisco Bay Area
  • 26,900 Gross SqFt
  • 3.0 Megawatts
zColo McLean
1764A Old Meadow Road
McLean, VA
Located in Northern Virginia
  • 62,500 Gross SqFt
  • 3.0 Megawatts

Zayo's acquired the McLean site in April 218. It was previously owned by PAETEC and Windstream.

zColo Denver Centennial
6900 S Peoria St
Centennial, CO 80112
Located in Denver
  • 81,900 Gross SqFt
  • 10.0 Megawatts

The site at 6900 South Peoria Street in Centennial, CO is air-containment optimized and has a reflective white roof that prevents solar heat from entering the building. Inside, energy efficient “green” cooling solutions are engineered to achieve an industry-leading PUE of 1.3.

zColo Las Vegas
7185 Pollock Drive
Las Vegas, NV 89119
Located in Las Vegas
  • 57,100 Gross SqFt
  • 2.8 Megawatts
zColo Los Angeles 707 Wilshire
707 Wilshire Boulevard
Los Angeles, CA 90017
Located in Los Angeles
  • 7,465 Gross SqFt
  • 0.4 Megawatts
zColo Memphis-7620 Appling Center
7620 Appling Center Drive
Memphis, TN
Located in Memphis
  • 12,100 Gross SqFt
zColo Minneapolis-10300 6th
10300 6th Avenue North
Plymouth, MN
Located in Minneapolis St Paul
  • 7,782 Gross SqFt
zColo Nashville-209 10th Ave South
209 10th Avenue South
Nashville, TN
Located in Nashville
  • 14,500 Gross SqFt
  • 0.75 Megawatts
zColo Newark-165 Halsey
165 Halsey Street
Newark, NJ 07102
Located in New Jersey
  • 50,000 Gross SqFt