AS680 153.97.152.0/21 CIDR and IP Range Summary.ASN: 680 - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.Host Count: 2046Addressable IPs: 2048153.97.152.0/24153.97.153.0/24153.97.154.0/24153.97.155.0/24153.97.156.0/24153.97.157.0/24153.97.158.0/24153.97.159.0/24