Cogent Atlanta
Internet ExchangeAtlanta, GA · Cogent Communications, Inc.
At a glance
Cogent Atlanta is a colocation and interconnection facility listed in PeeringDB, located at 55 Marietta St. NW, Atlanta, GA 30303. It is operated by Cogent Communications, Inc. 15 networks are present at Cogent Atlanta according to PeeringDB, ranking it 141st of 1,390 US facilities by network count. It hosts 1 internet exchange (public peering fabrics).
Peering & carrier density
How many networks and carriers are at Cogent Atlanta?
15 networks are present at Cogent Atlanta according to PeeringDB, ranking it 141st of 1,390 US facilities by network count. Within Georgia it ranks 7th of 46 facilities. That is about 5 times the Georgia median of 3 networks per facility (national median: 2). 1 internet exchange has switching equipment in the building, so networks can peer publicly as well as by private cross-connect.
Who operates Cogent Atlanta?
PeeringDB lists Cogent Communications, Inc. as the operator of Cogent Atlanta. Cogent Communications, Inc. has 30 facilities in the GridCensus catalog across 17 states, 2 of them in Georgia.
Where is Cogent Atlanta located?
The facility's address is 55 Marietta St. NW, Atlanta, GA 30303. Atlanta has 28 PeeringDB interconnection facilities in the catalog. Georgia has 46 of the 1,390 US facilities; the best-connected has 191 networks present.
What datacenters and sites are near Cogent Atlanta?
5 datacenters are listed in the surrounding area (the largest by footprint); of those, the closest is QTS Atlanta Data Center 1, operated by Quality Technology Services, about 2.3 miles away. The highest-scoring datacenter candidate site in the surrounding area is NORCROSS in Gwinnett County, with a DC Readiness score of 71.3 out of 100.
Other exchanges in Atlanta
- Digital Realty ATL (56 Marietta)191 networks
- Digital Realty ATL (250 Williams)72 networks
- CoreSite - Atlanta (AT1)70 networks
- Equinix AT1 - Atlanta58 networks
- Equinix AT2/AT3 - Atlanta24 networks
- QTS Atlanta-Metro (ATL1)21 networks
Nearby datacenters
- Google Datacenter - Douglas CountyGoogle · GA
- QTS SuwaneeQuality Technology Services · Suwanee, GA
- Hewlett-PackardGA
- QTS Atlanta Data Center 1Quality Technology Services · Atlanta, GA
- Ascent - Atlanta Data CenterAscent · GA
Nearby datacenter candidate sites
Scored candidate sites near Cogent Atlanta, ranked by DC Readiness. Co-location near a well-peered exchange is a meaningful fiber-connectivity advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| NORCROSS | Substation-Adjacent | GA | Gwinnett County | 500 kV | 1,000 MW | 5.8 yrs | 71.3 |
| UNKNOWN111549 | Substation-Adjacent | GA | Fulton County | 230 kV | 300 MW | 5.8 yrs | 70.3 |
| BIG SHANTY | Substation-Adjacent | GA | Cobb County | 500 kV | 1,000 MW | 5.8 yrs | 70.1 |
| UNION | Substation-Adjacent | GA | Clayton County | 500 kV | 1,000 MW | 5.8 yrs | 69.7 |
| O'HARA | Substation-Adjacent | GA | Clayton County | 500 kV | 1,000 MW | 5.8 yrs | 69.5 |
| BULL SLUICE | Substation-Adjacent | GA | Cobb County | 500 kV | 1,000 MW | 5.8 yrs | 69.0 |
| KLONDIKE | Substation-Adjacent | GA | Rockdale County | 500 kV | 1,000 MW | 5.8 yrs | 67.1 |
| UNKNOWN111533 | Substation-Adjacent | GA | Fulton County | 230 kV | 300 MW | 5.8 yrs | 67.0 |
Frequently asked questions
Who owns or operates Cogent Atlanta?
Cogent Atlanta is operated by Cogent Communications, Inc., according to its PeeringDB facility record. Cogent Communications, Inc. has 30 US facilities in the GridCensus catalog across 17 states.
What is the address of Cogent Atlanta?
Cogent Atlanta is at 55 Marietta St. NW, Atlanta, GA 30303. Coordinates: 33.7559, -84.3912.
How many networks and carriers are at Cogent Atlanta?
15 networks are present at Cogent Atlanta according to PeeringDB, ranking it 141st of 1,390 US facilities by network count. The median Georgia facility has 3 networks present. PeeringDB counts every network (carriers, ISPs, cloud and content networks) that lists the facility as a point of presence.
Is there an internet exchange at Cogent Atlanta?
Yes. PeeringDB records 1 internet exchange with a presence at Cogent Atlanta.
Which datacenters are near Cogent Atlanta?
Large datacenters catalogued near Cogent Atlanta include QTS Atlanta Data Center 1 (Quality Technology Services), 2.3 miles away; Google Datacenter - Douglas County (Google), 11 miles away; Ascent - Atlanta Data Center (Ascent), 22 miles away.
More interconnection facilities and hubs in Georgia
About this data
Source: PeeringDB facility records, as published March 6, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Cogent Atlanta, Atlanta, GA”, https://gridcensus.com/internet-exchanges/cogent-atlanta-0873505b (data as of March 6, 2026).
Dataset updated . Screening estimates derived from public data sources.
Network and exchange counts are point-in-time figures from PeeringDB and may lag changes at the facility.
Go deeper than the public screen
Every site and score for Cogent Atlanta, Atlanta, GA is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.