AS19323 161.129.248.0/21 CIDR and IP Range Summary.ASN: 19323 - Holyoke Gas & Electric DepartmentHost Count: 2046Addressable IPs: 2048161.129.248.0/24161.129.249.0/24161.129.250.0/24161.129.251.0/24161.129.252.0/24161.129.253.0/24161.129.254.0/24161.129.255.0/24