Data as of Nov 5, 2026
143.55.146.0/24
No anonymizer space · no proxy exits in 30 daysProofpoint, 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 |
|---|---|---|---|---|---|---|
| 143.55.144.0/21 | 2,048 | US-PROOFPOINT-INC-19900828 | Proofpoint, Inc. (ORG-PI69-RIPE) · US | ALLOCATED PA | Sep 14, 2020 | abuse@ |
| └ 143. | 768 | PROOFPOINT-DE | Proofpoint, Inc. (ORG-PI69-RIPE) · US | ASSIGNED PA | Nov 30, 2022 | abuse@ |
Network & registry
Registry
Holder
- Organization
- Proofpoint, Inc.
- Handle
- ORG-PI69-RIPE
- Range
- 143.
55. 144. 0/ 21 - Registration type
- ALLOCATED PA
- Record created
- Sep 14, 2020
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
- Apr 2022
- Current origin since
- Apr 2022 · 4.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 143.55.144.0/21 | AS52129 | /24 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS52129 | RIPE | PROOFPOINT-EU-MNT | Jun 30, 2026 |
Whois
Registration for this announcement
- Range
- 143.
55. 144. 0 - 143. 55. 146. 255 - Netname
- PROOFPOINT-DE
- Registrant
- Proofpoint, Inc.
- Registrant country
- DE
- Organization
- Proofpoint, Inc. (ORG-PI69-RIPE)
- Org country
- US
- Type
- ASSIGNED PA
- Created
- Nov 30, 2022
- Updated
- Nov 30, 2022
- Maintainer
- PROOFPOINT-EU-MNT
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Aug 28, 1990
- Status
- assigned
Report abuse
Abuse contact
- abuse@
proofpoint. com - Name
- Abuse-C Role
- Handle
- AR38637-RIPE