Colocation
Rack space, 2N power and N+1 cooling for your own hardware.
BG‑SOF‑1 · Sofia
Our data center in Sofia
A Tier III design facility we own and operate, built for colocation, our cloud platform and managed services. Your equipment and data stay in the EU, with engineers on site 24/7.
Sofia, Bulgaria
42.70° N, 23.32° E
EU data residency
BG‑SOF‑1 in numbers
- white space
- 600 m²
- racks
- 200
- IT power capacity
- 1.2 MW
- carriers on site
- 4
Specifications
The facility at a glance
| Parameter | Value |
|---|---|
| Facility code | BG‑SOF‑1 |
| Location | Sofia, Bulgaria (EU) |
| Design | Tier III design, concurrently maintainable |
| White space | 600 m² |
| Capacity | 200 racks |
| Power density | Standard 5–8 kW, up to 15 kW for high-density racks |
| IT power capacity | 1.2 MW (200 racks × 6 kW on average) |
| Power | 2N: two independent paths, each with its own UPS and diesel generators |
| Cooling | N+1 chillers, hot and cold aisle containment |
| Connectivity | Carrier-neutral, 4 carriers |
| Physical security | Biometric access, 24/7 CCTV and on-site security |
| Certifications | ISO/IEC 27001, ISO 9001, ISO 22301 |
| Support | 24/7 NOC and remote hands, in English and Bulgarian |
Physical security
Four layers between the street and your server
Each layer has its own controls, and every entry is logged. Only people you approve in the Client Portal get access.
01
Perimeter
Fenced site with vehicle barriers, perimeter CCTV and security staff on site 24/7.
02
Building
One staffed entrance, ID checks against the approved visitor list and a mantrap airlock.
03
Data hall
Biometric and card access to each hall, full CCTV coverage and recorded entry and exit.
04
Cabinet
Individually locked racks or private cages, with keys or codes issued only to named people.
Power and cooling
Built to keep running through maintenance and faults
Every critical component has a backup, and every part can be serviced while your equipment keeps running.
Power: 2N
- Two independent utility feeds into the building
- Two separate UPS systems, each able to carry the full load
- Diesel generators with on-site fuel for 48 hours at full load
- A and B power feeds to every rack, over separate paths
- Generators tested under load every month
Cooling: N+1
- Chillers with a spare unit in every group
- Hot and cold aisle containment in every data hall
- Free cooling for much of the year, thanks to the climate in Sofia
- Temperatures kept within ASHRAE recommended ranges
- Temperature and humidity monitored per row, 24/7
Connectivity
Carrier-neutral, with real path diversity
4 carriers are present in the building, entering through two separate fiber routes into two meet-me rooms.
4 carriers
Use one or several, and get competitive offers for every link.
Two fiber entries
Separate routes into the building, so a single cable cut cannot isolate the site.
Fast cross-connects
Fiber and copper cross-connects, usually ready within two business days.
Direct cloud access
Private links from your rack to Nebora Public and Private Cloud.
Inside BG‑SOF‑1
A look around the facility
Illustrations of the main areas. You can see the real thing, and ask our engineers anything, on a site visit.
- Illustration
Data hallRows of racks with hot and cold aisle containment. - Illustration
Power roomUPS systems and switchgear for the A and B feeds. - Illustration
Cooling plantChillers and pumps with a spare unit in every group. - Illustration
Meet-me roomWhere carriers connect to customers and to our network. - Illustration
Secure entranceMantrap airlock with biometric access control. - Illustration
Network operations centerOur 24/7 team watching the facility and customer systems.
Services in the data center
Use the facility your way
Bring your own hardware, connect to any carrier and let our engineers help on site.
Connectivity
Carrier-neutral access to 4 operators, cross-connects and IP transit.
Remote Hands
On-site engineers for installs, reboots and hardware swaps, around the clock.
See it for yourself
Book a site visit and walk through BG‑SOF‑1 with one of our engineers. A visit usually takes about an hour.