Proofpoint, Inc.
GLEIF verified
Complete entity footprint
2 linked clusters ·
411 netblocks ·
150,349 IPv4 addresses
This organisation's clusters combined by evidence —
shared operating domain pphosted.com
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
529900C5FODDK0WSR085
Registered name
Proofpoint, Inc.
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 184 · 78,722 IPv4 addresses |
| Registered in | United States (151) · United Kingdom (7) · Netherlands (4) · Germany (3) · Israel (1) |
| Cluster ID | 208785067 |
| Registry | BGP |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 529900C5FODDK0WSR085 |
| Shared handles | clustered on 31 shared RIR contact/maintainer handles |
| Registry names | 10 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
185
0 netblocks since 2026-07-05
2026-07-05
peak 185
2026-07-19
IP Ranges (184)
showing 50 of 184 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 66.159.224.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.225.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.227.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.228.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.232.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.233.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.234.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.235.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.236.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.237.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.238.0/23 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.240.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.241.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.243.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.244.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.245.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.246.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.247.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.248.0/23 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.250.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.250.0/23 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.251.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.252.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.253.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.254.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 66.159.255.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.144.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.145.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.146.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.147.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.148.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.149.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.150.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.151.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.152.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.153.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.154.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.155.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.156.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.157.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.158.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 67.231.159.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 91.207.212.0/23 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 91.207.212.0/23 | Proofpoint, Inc. | RIPE | ASSIGNED PI | ● high |
| 91.209.104.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 91.209.104.0/24 | Proofpoint, Inc. | RIPE | ASSIGNED PI | ● high |
| 143.55.144.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 143.55.145.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 143.55.146.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
| 143.55.147.0/24 | Proofpoint, Inc. | BGP | ANNOUNCED | ● high |
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
95.1%
of checked blocks have valid RPKI ROA coverage
(175 of 184)
Possible discrepancies (2)
These blocks are registered to Proofpoint, Inc. but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a0a:2b00::/32 /32 | authorized for AS51219 — K2 Integration JSC |
| 143.55.151.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
NIC Handles
AB34802-RIPE
AS13916
AS22843
AS26211
AS3257-IPAM-MNT
AS52129
AS52129
DUMY-RIPE
DUMY-RIPE
EQUINIX-FULFIL-MNT
EQUINIX-MNT
LEVEL3-MNT
+19 more