AS16839 149.91.248.0/21 CIDR and IP Range Summary.ASN: 16839 - ServiceNow Inc.Host Count: 2046Addressable IPs: 2048149.91.248.0/24149.91.249.0/24149.91.250.0/24149.91.251.0/24149.91.252.0/24149.91.253.0/24149.91.254.0/24149.91.255.0/24