Autonomous system
AS30215 AS-CISCOHPS-APAC - Cisco Systems Ironport Division
Unclassified ARIN
Summary
Cisco IronPort
security email business cisco
AS-CISCOHPS-APAC is held by Cisco Systems Ironport Division.
What it's used for
- The address space carries email security infrastructure, evidenced by reverse DNS entries such as
esa.hc714-22.ap.iphmx.comandsma1.hc275-61.ap.iphmx.com, which identify IronPort Email Security Appliances and Secure Mail Appliances. - The AS announces 3840 IPv4 addresses across 8 prefixes and 2 IPv6 prefixes, with 5 observed neighbours, indicating a specialized service network rather than a general transit or access provider.
Notable
- All registrants for the announced prefixes are listed as Cisco Systems Ironport Division, matching the AS holder.
- IronPort Systems was acquired by Cisco Systems, and this AS represents the IP space allocated to that division for its security products.
- The inventory consists of multiple /23 and /24 blocks, including ranges in 139.138.0.0/16, 23.90.0.0/16, and 207.54.0.0/16, all registered under the netname CISL-7.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 3.84K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS30215- Registry name
- AS-CISCOHPS-APAC
- Registrant
- Cisco Systems Ironport Division
- Abuse contact
- netops-ironport@cisco.com
- Registered
- 2008-02-01
- Last changed
- 2018-07-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 17 valid, 0 with no ROA
- ROAs
- 17 authorising AS30215
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 37 naming AS30215
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 449 networks and 1,846 prefixes, as published 2026-11-03. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere