Data as of Nov 14, 2026
185.183.28.0/22
No anonymizer space · no proxy exits in 30 daysProofpoint, Inc.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 185.183.28.0/24 since Jan 2017 | AS52129 | Business | Proofpoint, Inc. | |
| 185.183.29.0/24 since Jan 2017 | AS52129 | Business | Proofpoint, Inc. | |
| 185.183.30.0/24 since Jan 2017 | AS52129 | Business | Proofpoint, Inc. | |
| 185.183.31.0/24 since Jan 2017 | AS52129 | Business | Proofpoint, Inc. |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 185.183.28.0/22 | 1,024 | US-PROOFPOINT-INC-20161220 | Proofpoint, Inc. (ORG-PI69-RIPE) · US | ALLOCATED PA | Dec 20, 2016 | abuse@ |
| └ 185.183.28.0/23 | 512 | pfptnl | unknown | ASSIGNED PA | Sep 1, 2025 | abuse@ via US-PROOFPOINT-INC-20161220 |
| └ 185.183.30.0/23 | 512 | pfptnl | unknown | ASSIGNED PA | Sep 1, 2025 | abuse@ via US-PROOFPOINT-INC-20161220 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Origin network
AS52129
US
- Name
- Proofpoint, Inc.
- Type
- Business
- Registered
- Jan 5, 2011
- Domain
- proofpoint.com
- Website
- www.proofpoint.com/
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2017
- Current origin since
- Jan 2017 · 9.8 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 185.
183. 28. 0/ 22 - Netname
- US-PROOFPOINT-INC-20161220
- Registrant
- Proofpoint, Inc.
- Registrant country
- NL
- Organization
- Proofpoint, Inc. (ORG-PI69-RIPE)
- Org country
- US
- Type
- ALLOCATED PA
- Created
- Dec 20, 2016
- Updated
- Dec 20, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Dec 20, 2016
- Status
- assigned
Report abuse
Abuse contact
- abuse@
proofpoint. com - Name
- Abuse-C Role
- Handle
- AR38637-RIPE