Data as of Nov 4, 2026
208.90.56.0/23
No anonymizer space · no proxy exits in 30 daysCisco Systems Ironport Division
Network & registry
Origin network
AS16417
US
- Name
- Cisco Systems Ironport Division
- Type
- Business
- Registered
- Jun 22, 2005
- Domain
- cisco.com
- Website
- www.cisco.com
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2011
- Current origin since
- Apr 2011 · 16 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 208.90.57.0/24 | AS16417 | ARIN | 170 West Tasman Drive | MNT-CISL-7 | Feb 4, 2023 |
Whois
Registration for this announcement
- Range
- 208.
90. 56. 0/ 21 - Netname
- NETWORK-IRONPORT-SYSTEMS-2
- Registrant
- Cisco Systems Ironport Division
- Organization
- Cisco Systems Ironport Division (CISL-7)
- Org address
- 170 West Tasman Drive, San Jose, CA, 95134
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-90-56-0-1
- Parent
- NET-208-0-0-0-0
- Created
- May 2, 2008
- RIR
- ARIN
- Country
- US
- Delegated
- May 2, 2008
- Status
- assigned
Report abuse
Abuse contact
- netops-ironport@
cisco. com - Name
- Ironport Network Abuse
- Phone
- +1-650-898-1526
- Handle
- INA15-ARIN