AT&T: 635 Grant St

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AT&T: 635 Grant St

Year Built: 1969
Utility Provider: Duquesne Light
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The AT&T Building is a 16-story network building in downtown Pittsburgh. AT&T sold it to Reign Capital in a 2021 sale-leaseback and remains the tenant. The building has emergency generators and diesel storage, and AT&T has replaced its rooftop cooling towers and added in-row coolers since 2024.

Site History

  • May 2021: Reign Capital buys the building and leases it back to AT&T.
  • 1969: AT&T completes the building.

Map and Nearby Locations

635 Grant St
AT&T Sites
Nearby Facilities

Sites within 15 miles of AT&T: 635 Grant St

Distance Site About
0.04 miles Verizon: 416 7th Ave
Verizon's Downtown Pittsburgh central office in the 20-story Bell Telephone Building houses the area's main tandem switch and a regional signaling hub.
0.32 miles DQE Communications Pittsburgh
DQE Communications' downtown Pittsburgh colocation room and network node inside the Pittsburgh Tech Center at 322 Fourth Avenue.
0.33 miles E.V. Bishoff: Pittsburgh Tech Center
The Pittsburgh Tech Center at 322 Fourth Avenue is E.V. Bishoff's downtown data center and telecom building, home to DQE and several colocation providers.
0.81 miles DataBank Pittsburgh PIT1
DataBank PIT1 is a carrier-neutral colocation data center in Nova Place on Pittsburgh's North Side that hosts the Pittsburgh Internet Exchange.
0.83 miles Expedient Pittsburgh (North Side)
Expedient's North Side data center is a colocation and cloud facility in Nova Place, the former Allegheny Center Mall, on Pittsburgh's North Side.
0.86 miles Verizon: 3 Allegheny Ctr
A former XO Communications network and colocation node at 3 Allegheny Center on Pittsburgh's North Side; the building now holds apartments.
1.02 miles H5 Pittsburgh
H5 Pittsburgh is a colocation data center in Pittsburgh's Strip District that H5 Data Centers bought from vXchnge in 2022.
1.72 miles Lumen Pittsburgh 1
Lumen's Pittsburgh 1 site is a network gateway and colocation building on South 25th Street in Pittsburgh's South Side Flats.
1.84 miles Cogent: 3126 Liberty Ave
Cogent's Pittsburgh data center is a colocation facility in the former Sprint network building on Liberty Avenue, at the edge of the Strip District.
2.06 miles Lumen: Pittsburgh 2
Lumen's Pittsburgh 2 site is a network switching and colocation building on Technology Drive in the Pittsburgh Technology Center.
2.52 miles Verizon: 530 N Neville St
Verizon's Oakland central office in Pittsburgh holds the host switch that now serves many of the area's former exchanges, plus a regional signaling hub.
2.53 miles EdgeConneX Pittsburgh
EdgeConneX Pittsburgh is an edge colocation data center west of downtown Pittsburgh in a building EdgeConneX owns.
2.65 miles Expedient Pittsburgh (Green Tree)
Expedient's Green Tree data center is the company's original Pittsburgh colocation facility, in Green Tree Borough south-west of downtown.
3.04 miles aspStation: Pittsburgh
aspStation runs a small colocation and cloud data center in its own building on Penn Avenue in Pittsburgh's East End, built by IBM in 1990.
3.66 miles American Tower: Pittsburgh
American Tower's Pittsburgh edge data center is a small modular colocation facility at a tower site in southern Pittsburgh.
5.39 miles Consolidated Evergreen
Consolidated Communications resold colocation space inside MSA's Evergreen Heights data center north of Pittsburgh until about 2025.
5.40 miles MSA: Evergreen Hights
MSA's Evergreen Heights data center is a Tier III-designed colocation facility in a hillside bunker in Ross Township, north of Pittsburgh.
6.48 miles iM Critical: Pittsburgh
iM Critical's Pittsburgh campus is a modular high-density data center site on Brinton Road at the Wilkinsburg-Edgewood border, east of downtown.
7.44 miles University of Pittsburgh: NOC
The University of Pittsburgh's Network Operations Center in the RIDC Park, O'Hara Township, is the university's enterprise data center for IT and research computing.
7.70 miles Ardent (Northern Data): Pittsburgh, Pennsylvania
Ardent Data Centers, part of Northern Data, runs an AI-ready colocation data center in Robinson Township, west of Pittsburgh.
7.75 miles Ascent Data: Pittsburgh
Ascent Data runs a SOC 2 audited data center for its managed IT and colocation customers in the RIDC Park in O'Hara Township, north-east of Pittsburgh.
10.26 miles DataBank Pittsburgh PIT2
DataBank PIT2 is a colocation data center in a former PNC Bank data center in North Fayette Township, west of Pittsburgh, where PNC remains a tenant.
12.68 miles Dynamo DC: Springdale
Dynamo DC plans a single large AI data center on the site of the former Cheswick Generating Station in Springdale, north-east of Pittsburgh.
13.43 miles Next Tier Connect: Pittsburgh East
Next Tier Connect Pittsburgh East is a mission-critical technology campus in the former Westinghouse Energy Center in Monroeville that hosts the Pittsburgh Supercomputing Center's Bridges-2.
14.39 miles Consolidated Rockpointe
Consolidated Communications resold colocation space inside MSA's RockPointe data center in West Deer Township until about 2025.
14.40 miles MSA: Rockpointe
MSA's RockPointe data center is the original Tier III colocation facility of Management Science Associates, in West Deer Township north-east of Pittsburgh.
15.12 miles Henderson Road Data Center
Hendricks Group proposes a large data center campus with its own gas power plant on a former landfill on Henderson Road in Elizabeth Township, Allegheny County.
19.81 miles TECfusions: New Kensington, PA
TECfusions' Keystone Connect is an AI data center campus at the former Alcoa Technical Center in Upper Burrell Township, north-east of Pittsburgh.

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