AS30238 — AS-IRONP-VEGA

AS30238 announces 30 IPv4 prefixes covering 15,360 addresses and 4 IPv6 prefixes.

About this network

AS-IRONP-VEGA is operated by Cisco Systems Ironport Division.

What it's used for

• The address space carries email security infrastructure, evidenced by reverse DNS entries such as esa2.hc273-85.eu.iphmx.com and esa5.hc1475-57.eu.iphmx.com, where esa denotes Email Security Appliance and iphmx references IronPort's cloud platform.
• The AS announces 15,360 IPv4 addresses across 30 prefixes and 4 IPv6 prefixes, maintaining 6 observed neighbours; this ratio of moderate address inventory to few peering partners indicates a dedicated service network rather than a transit provider.

Notable

• All registrants for the largest prefixes are consistently listed as Cisco Systems Ironport Division, with netnames CISL-7 and IRONPORT-DH appearing across the inventory.
• IronPort Systems was acquired by Cisco Systems, and this AS represents the legacy address space of that division now integrated into Cisco's security portfolio.
• The inventory is finely subdivided into numerous /22 and /23 blocks, reflecting a segmented corporate estate for appliance deployment and cloud services.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

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

Upstream networks

• AS3257 GTT Communications Inc.
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS174 Cogent Communications, LLC
• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.

Adjacent networks

• AS3257 GTT Communications Inc.
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS174 Cogent Communications, LLC
• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands