AS30238 Cisco Systems Ironport Division

AS-IRONP-VEGA - Cisco Systems Ironport Division · registered in the United States

IPv4 addresses15,36030 prefixes · <0.001% of announced IPv4

Rank in United States#2,446largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#7,283of 79,396 networks with IPv4

IPv64 x /484 prefixes

CountryUnited States18,679 ASNs registered there

Open AS30238 in ASN lookup Look up an IP in this network (23.90.102.1) All networks in United States

IPv4 prefixes

All 30 prefixes, in address order.

23.90.102.0/24
23.90.104.0/23
23.90.110.0/23
23.90.114.0/23
23.90.116.0/22
23.90.122.0/23
68.232.132.0/23
68.232.138.0/23
68.232.150.0/23
68.232.152.0/24
68.232.156.0/24
68.232.159.0/24
139.138.36.0/23
139.138.60.0/22
184.94.255.0/24
194.165.192.0/23
194.165.194.0/24
194.165.202.0/24
194.165.205.0/24
194.165.213.0/24
194.165.214.0/23
194.165.216.0/24
207.54.64.0/21
207.54.72.0/24
207.54.76.0/23
207.54.78.0/24
207.54.88.0/22
216.71.136.0/24
216.71.139.0/24
216.71.156.0/22

IPv6 prefixes

All 4 prefixes.

2620:101:2009::/48
2620:101:200a::/48
2620:101:2011::/48
2620:101:2012::/48

Other ASNs named Cisco Systems Ironport Division

3 other networks use the same organisation name; together with AS30238 they announce 49,664 IPv4 addresses.

ASNNameIPv4 addresses

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

AS30215AS-CISCOHPS-APAC - Cisco Systems Ironport Division US3,840

AS40427IRONPORT-SYSTEMS-CI365 - Cisco Systems Ironport Division US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS11414#2443 NVIDIA-NET - Nvidia Corporation15,360

AS6295#2444 LUNAVI-WA - Lunavi, Inc.15,360

AS32629#2445 CITY-OF-CHARLOTTE-ASN - City of Charlotte15,360

AS19233#2447 DIALOGIX - Dialogix Telecom15,360

AS7346#2448 SPRINGTIDE-AS - Springtide Communications15,360

AS14669#2449 RGTS-NY - Convergeone Unified Technology Solutions, Inc.15,360

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