AS26211
Proofpoint, Inc.
USUnknown2026-08-05
Announced prefixes 55
66.159.227.0/2466.159.240.0/2466.159.241.0/2466.159.248.0/2367.231.144.0/2467.231.145.0/2467.231.146.0/2467.231.147.0/2467.231.148.0/2467.231.149.0/2467.231.150.0/2467.231.151.0/2467.231.158.0/2467.231.159.0/24148.163.132.0/24148.163.133.0/24148.163.134.0/24148.163.135.0/24148.163.144.0/24148.163.145.0/24148.163.146.0/24148.163.147.0/24148.163.148.0/22148.163.156.0/23205.220.160.0/24205.220.161.0/24205.220.162.0/24205.220.163.0/24205.220.164.0/24205.220.165.0/24205.220.166.0/24205.220.167.0/24205.220.168.0/24205.220.169.0/24205.220.170.0/24205.220.171.0/24205.220.186.0/24205.220.190.0/24205.220.191.0/24208.56.8.0/24208.56.9.0/24208.56.10.0/24208.56.11.0/24208.56.16.0/24208.56.56.0/24208.56.57.0/24208.56.58.0/24208.56.59.0/24208.84.65.0/24208.84.66.0/24208.86.202.0/24208.86.203.0/242620:100:9000::/472620:100:900c::/482620:100:900d::/48Snapshot history
| Date | Name | Country | Class | Prefixes |
|---|---|---|---|---|
| 2026-11-11 | Proofpoint, Inc. | US | Unknown | 56 |
| 2026-11-10 | Proofpoint, Inc. | US | Unknown | 56 |
| 2026-11-09 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-08 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-07 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-06 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-05 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-04 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-03 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-02 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-11-01 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-31 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-30 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-29 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-28 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-27 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-26 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-25 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-24 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-23 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-22 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-21 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-20 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-19 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-18 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-17 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-16 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-15 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-14 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-13 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-12 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-11 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-10 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-09 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-08 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-07 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-06 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-05 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-04 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-03 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-02 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-10-01 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-30 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-29 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-28 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-27 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-26 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-25 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-24 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-23 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-22 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-21 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-20 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-19 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-18 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-17 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-16 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-15 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-14 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-13 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-12 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-11 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-10 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-09 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-08 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-07 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-06 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-05 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-04 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-03 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-02 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-09-01 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-31 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-30 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-29 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-28 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-27 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-26 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-25 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-24 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-23 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-22 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-21 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-20 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-19 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-18 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-17 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-16 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-15 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-14 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-13 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-12 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-11 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-10 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-09 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-08 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-07 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-06 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-05 | Proofpoint, Inc. | US | Unknown | 55 |
| 2026-08-04 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-08-03 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-08-02 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-08-01 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-31 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-30 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-29 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-28 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-27 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-26 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-25 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-24 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-23 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-22 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-21 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-20 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-19 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-18 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-17 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-16 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-15 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-14 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-13 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-12 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-11 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-10 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-09 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-08 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-07 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-06 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-05 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-04 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-03 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-02 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-07-01 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-30 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-29 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-28 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-27 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-26 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-25 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-24 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-23 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-22 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-21 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-20 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-19 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-18 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-17 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-16 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-15 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-14 | Proofpoint, Inc. | US | Unknown | 51 |
| 2026-06-13 | Proofpoint, Inc. | US | Unknown | 51 |
IP-block changes
Open full filtered history →| Observed | Block | Action | Previous origins | New origins |
|---|---|---|---|---|
| 2026-11-10 | 208.56.3.0/24 | Acquired | — | AS26211 |
| 2026-08-05 | 208.56.56.0/24 | Acquired | — | AS26211 |
| 2026-08-05 | 208.56.57.0/24 | Acquired | — | AS26211 |
| 2026-08-05 | 208.56.58.0/24 | Acquired | — | AS26211 |
| 2026-08-05 | 208.56.59.0/24 | Acquired | — | AS26211 |
Changes page 1