AS31400 77.37.16.0/21 CIDR and IP Range Summary.ASN: 31400 - firstcolo GmbHHost Count: 2046Addressable IPs: 204877.37.16.0/2477.37.17.0/2477.37.18.0/2477.37.19.0/2477.37.20.0/2477.37.21.0/2477.37.22.0/2477.37.23.0/24