# 208.90.56.104 — IP Intelligence Summary

208.90.56.104 is an IPv4 address operated by IRONPORT-SYSTEMS-INC - Cisco Systems Ironport Division, US (AS16417), with approximate network location Las Vegas, United States. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/208.90.56.104
- Last updated: 2026-11-13

## Ownership

- Organization: Cisco Systems Ironport Division
- Network name: NETWORK-IRONPORT-SYSTEMS-2
- Allocated block: 208.90.56.0/21
- ASN: AS16417 (https://ipdebrief.com/asn/16417)
- Regional registry: ARIN
- Registered holder: Cisco Systems Ironport Division
- Routing operator: IRONPORT-SYSTEMS-INC - Cisco Systems Ironport Division, US
- Network registration country: United States
- Registrant address country: —

## Location

- City: Las Vegas
- Region: —
- Country: United States
- Time zone: —

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (0/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- caa: Not checked
- spf: Not checked
- dmarc: Not checked
- dnssec: Not checked
- fcrDns: Not checked

## Addresses sharing infrastructure

- 208.90.58.19 — Same abuse contact (https://ipdebrief.com/208.90.58.19)

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Source: IPDebrief, "208.90.56.104 IP intelligence", https://ipdebrief.com/208.90.56.104, updated 2026-11-13. Assessments are probabilistic.