Data as of Nov 6, 2026
143.55.144.0/21
No anonymizer space · no proxy exits in 30 daysAnnounced only in parts
Announcement
8 inside
Type
Business
88% of it
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.55.144.0/24 since Oct 2020 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.145.0/24 since Jun 2021 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.146.0/24 since Apr 2022 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.147.0/24 since Aug 2022 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.148.0/24 since Jun 2021 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.149.0/24 since Jul 2022 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.150.0/24 since Apr 2023 | AS52129 | Business | Proofpoint, Inc. | |
| 143.55.151.0/24 since Sep 2021 | AS16509 | Hosting | Proofpoint, Inc. |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 1,792 | 88% | 7 | |
| Hosting | 256 | 13% | 1 |