Check-Host.cc

Autonomous System

AS680 · DFN Deutsches Forschungsnetz e.V.

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Announced IPs
7.91M
IPv4
IPv4 Prefixes
294
IPv6 Prefixes
24
Hosted Domains
43,314
resolve into this AS
Peers
358
Customers
31

AS Profile

AS Name
DFN Deutsches Forschungsnetz e.V.
Also known as
DFN
AS Type
Educational/Research
Scope
Europe
Traffic
1-5Tbps
IRR AS-SET
AS680:AS-DFNTOWINISP
RIR
RIPE NCC
Country
DE
Allocated
1993-09-01

RPKI Validity

Total ROAs
1,058
Valid Prefixes
252
NotFound
66
Announced (BGP)
318
RPKI Coverage
79.2%

Geographic Footprint

Countries where this AS's scanned IPs are geolocated, by open-IP count.

DE
84,958
226

Top Open Ports

Most common open ports across IPs in this AS (last 30 days).

Port Open IPs
2000 3,151
5060 2,875
443 1,219
80 1,101
22 650
25 372
1720 363
143 347
8080 324
21 294
110 287
53 151
6001 111
8443 110
8333 97