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Sofia Connect

AI interconnect

High-capacity optical transport for AI

Managed wavelengths of up to 400G, and 800G today through your own spectrum after we measure the line on your route. Between AI sites, exchanges and cloud on-ramps across the Middle East, Caucasus and Europe corridor.

Sofia Connect does not operate GPU capacity and does not provide colocation. We are the network between the sites.

Capacity

Built for the volumes AI moves

Training runs, checkpoints and dataset copies move in terabytes. On our DWDM network you either take a managed wavelength, or you take spectrum and light it with your own optics. 800G runs today on spectrum, once we have measured the line parameters on the specific route.

400G

managed wavelength, per λ

1G–400G, at list price

112.5 GHz

your spectrum: 800G

800G today, after we measure the line on your route

150 GHz

your spectrum: 800G + next gen

800G today, after we measure the line on your route

Optical Spectrum

Layer 1

A wavelength is not a faster internet circuit

A lambda is dedicated optical capacity. There is no queueing, no contention and no loss from oversubscription, because the capacity is not shared. That comes from the physics, not from configuration. It is the property distributed work between sites depends on, and it is what separates a wavelength from a well-provisioned IP path.

dedicated optical capacity
deterministic latency
coherent optics
1G / 10G / 100G / 400G
protection, optional
1+1

Power

AI sites are chosen by power. Then by network.

The corridor connects regions with their own generation to the European interconnection hubs. If the power case points east, the network does not have to be the reason it stays west.

Corridor

Where the network runs

DWDM is delivered from all 18 points of presence in 8 countries. Our own equipment is in Bulgaria; the other points are served through partners.

~24.5 ms RTT

Sofia → Frankfurt

~12 ms RTT

Sofia → Istanbul

Caucasus Cable System

Capacity to the Caucasus crosses the Black Sea on the Caucasus Cable System between Balchik and Poti, without transit through Türkiye. We provide it through a partner.

Internet exchanges

  • MegaIX Sofia10G port
  • DE-CIX Frankfurt10G port
  • GR-IX Athens10G port
Size your north-south requirement →

Indicative model · published assumptions, not a measurement or a capacity commitment. Route-specific design available on request.

Tell us which sites you need to connect.

We will map the path between them: a DWDM wavelength, your own spectrum, IP Transit, or Sofia metro dark fiber.