AS30215 Cisco Systems Ironport Division

AS-CISCOHPS-APAC - Cisco Systems Ironport Division · registered in the United States

IPv4 addresses3,8408 prefixes · <0.001% of announced IPv4

Rank in United States#4,915largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#16,659of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS30215 in ASN lookup Look up an IP in this network (23.90.106.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

23.90.106.0/23
23.90.108.0/23
23.90.120.0/24
139.138.28.0/22
139.138.42.0/23
139.138.44.0/23
207.54.75.0/24
207.54.83.0/24

IPv6 prefixes

All 2 prefixes.

2620:101:200d::/48
2620:101:200e::/48

Other ASNs named Cisco Systems Ironport Division

3 other networks use the same organisation name; together with AS30215 they announce 49,664 IPv4 addresses.

ASNNameIPv4 addresses

AS16417IRONPORT-SYSTEMS-INC - Cisco Systems Ironport Division US29,952

AS30238AS-IRONP-VEGA - Cisco Systems Ironport Division US15,360

AS40427IRONPORT-SYSTEMS-CI365 - Cisco Systems Ironport Division US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS30371#4912 AS-GTT-30371 - GTT Americas, LLC3,840

AS22299#4913 GCRONLINE - GCR Company/GCR Online3,840

AS26324#4914 GARMIN-ASN-1 - GARMIN INTERNATIONAL INC.3,840

AS3719#4916 CT-JIS - State of Connecticut Judicial Branch3,840

AS26891#4917 NEWCLOUD - Otava, LLC3,840

AS32539#4918 WCMCQ-NET - Weill Cornell Medical College in Qatar3,840

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