| Full name | Deutsche Telekom AG |
| ASN | AS3320 |
| Type | Tier-1 ISP / Telecom |
| Country | Germany |
| Headquarters | Bonn, Germany |
| Founded | 1995 |
| Website | telekom.de |
| Registry | RIPE |
| Total IPs | ~25 million (IPv4) |
| Upstream | Tier-1 — largest ISP in Germany and one of the largest in Europe |
| IPv6 | 2003::/19 |
| RIR | RIPE |
| Abuse email | abuse@telekom.de |
| Abuse form | Report abuse → |
AS3320 is Deutsche Telekom's primary ASN — the largest ISP in Germany and one of the top 5 in Europe. Deutsche Telekom operates the T-Home broadband and T-Mobile brands and is the parent company of T-Mobile US. The 5.5.5.5 IP address is within Deutsche Telekom's allocation. Deutsche Telekom's backbone connects all major German cities and peers at all major European internet exchanges.
Every time you visit a website, your IP address — and therefore your ISP (Deutsche Telekom AG) — is visible to that site. Deutsche Telekom AG as your ISP can see all unencrypted traffic passing through their network, including the domains you visit. This is standard practice for all ISPs and is typically used for network management, legal compliance, and in some cases targeted advertising.
If your device is assigned an IP in Deutsche Telekom AG’s ranges, websites you visit will identify your connection as coming from Deutsche Telekom AG. To prevent this, a VPN replaces your ISP-assigned IP with the VPN server’s IP, making your traffic appear to come from a different provider entirely.
AS3320 is registered with RIPE — the Regional Internet Registry responsible for IP allocations in Europe, the Middle East, and Central Asia. The ASN is used to announce IP prefixes to the global BGP routing table, allowing other networks to route traffic to Deutsche Telekom AG’s infrastructure.
Deutsche Telekom AG peers with major transit providers and internet exchanges to ensure global reachability. BGP peering relationships determine how traffic flows between Deutsche Telekom AG and the rest of the internet.
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