AS55819 CAMPAIGN MONITOR PTY LTD

CAMPAIGNMONITOR-AS-GLOBAL - CAMPAIGN MONITOR PTY LTD · registered in Australia

IPv4 addresses6,40011 prefixes · <0.001% of announced IPv4

Rank in Australia#189largest network in AU by IPv4 space, of 1,660 · 0.02% of AU

Rank worldwide#11,973of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryAustralia1,688 ASNs registered there

Open AS55819 in ASN lookup Look up an IP in this network (27.126.144.1) All networks in Australia

IPv4 prefixes

All 11 prefixes, in address order.

27.126.144.0/21
103.28.40.0/22
146.88.16.0/23
146.88.18.0/24
146.88.28.0/24
180.189.136.0/22
203.55.21.0/24
203.55.138.0/24
204.75.142.0/24
205.166.177.0/24
216.99.201.0/24

IPv6 prefixes

All 1 prefix.

2404:de00::/32

Similar-sized networks in Australia

ASNNameIPv4 addresses

AS132405#186 SUMMITINTERNET-AS-AP - Summit Internet (Australia)7,168

AS38084#187 ETHAN-AU-AP - Ethan Group6,912

AS24012#188 RAPL-AS-AP - Refinitiv Australia PTY Limited6,912

AS59346#190 AIS-AS-AP - Australian IT Solutions Group6,400

AS132789#191 PIVOTEL-AS-AP - Pivotel Group Pty Limited6,400

AS56038#192 RACKCORP-AP - RackCorp6,400

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources