AS23503 216.99.176.0/20 CIDR and IP Range Summary.ASN: 23503 - Exelon CorporationHost Count: 4094Addressable IPs: 4096216.99.176.0/24216.99.177.0/24216.99.178.0/24216.99.179.0/24216.99.180.0/24216.99.181.0/24216.99.182.0/24216.99.183.0/24216.99.184.0/24216.99.185.0/24216.99.186.0/24216.99.187.0/24216.99.188.0/24216.99.189.0/24216.99.190.0/24216.99.191.0/24