Data as of Nov 3, 2026
Autonomous system
AS11971
Pfizer Inc.
Announces 10,496 addresses in 6 prefixes. None of it is anonymizer space.
Type
Business
US
Proxy activity, 30 days
2 exits
Announced prefixes
| Prefix | Type | Proxy exits | RPKI |
|---|---|---|---|
| 146.240.1.0/24 since Jun 2023 | Business | 2 | |
| 148.168.32.0/19 since May 2005 | Business | ||
| 148.168.35.0/24 since Oct 2025 | Business | ||
| 148.168.192.0/22 since Sep 2017 | Business | ||
| 148.168.192.0/23 since Nov 2025 | Business | ||
| 148.168.224.0/22 since May 2005 | Business |
Residential-proxy exposure
Providers
2
selling exits here
Proxy providers listing exits
- AnyIP
- FloppyData
Proxy activity
Oct 4, 2026 – Nov 2, 2026
AS11971, day by day
5 observations
Network & history
Profile
- Registered
- Feb 17, 1999
- Domain
- pfizer.com
- Industry
- Manufacturing
Routing patterns
How its announcements have moved
Arrivals