Data as of Nov 5, 2026
208.83.138.0/24
No anonymizer space · no proxy exits in 30 daysProofpoint, Inc.
Network & registry
Origin network
AS13916
US
- Name
- Proofpoint, Inc.
- Type
- Business
- Registered
- May 20, 2014
- Domain
- proofpoint.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
latest 12 of 14 stints
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jan 2008
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 3
- Last change of origin
- Mar 2026
Recorded history
History
- Stints on record
- 14
- Handoffs
- 11
Whois
Registration for this announcement
- Range
- 208.
83. 136. 0/ 22 - Netname
- CLOUDMARK-IPV4-1
- Registrant
- Proofpoint, Inc.
- Organization
- Proofpoint, Inc. (PROOF)
- Org address
- 925 W Maude Ave, Sunnyvale, CA, 94085
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-83-136-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Oct 9, 2007
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 9, 2007
- Status
- assigned
Report abuse
Abuse contact
- abuse@
proofpoint. com - Name
- Proofpoint ARIN Abuse
- Phone
- +1-801-748-4494
- Handle
- PAA19-ARIN