Data as of Nov 3, 2026
Autonomous system
AS1280
Internet Systems Consortium, Inc.
Announces 23,296 addresses in 92 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | RPKI |
|---|---|---|
| 149.20.1.0/24 since Jun 2019 | Business | |
| 149.20.6.0/24 since Jun 2019 | Business | |
| 149.20.7.0/24 since Jun 2019 | Business | |
| 149.20.8.0/24 since Jun 2019 | Business | |
| 149.20.10.0/24 since Jun 2019 | Business | |
| 149.20.12.0/24 since Jun 2019 | Business | |
| 149.20.13.0/24 since Jun 2019 | Business | |
| 149.20.14.0/24 since Jun 2019 | Business | |
| 149.20.15.0/24 since Jun 2019 | Business | |
| 149.20.16.0/24 since Jun 2019 | Business | |
| 149.20.17.0/24 since Jun 2019 | Business | |
| 149.20.18.0/24 since Jun 2019 | Business | |
| 149.20.19.0/24 since Jun 2019 | Business | |
| 149.20.20.0/24 since Jun 2019 | Business | |
| 149.20.21.0/24 since Jun 2019 | Business | |
| 149.20.22.0/24 since Jun 2019 | Business | |
| 149.20.23.0/24 since Jun 2019 | Business | |
| 149.20.24.0/24 since Jun 2019 | Business | |
| 149.20.25.0/24 since Jun 2019 | Business | |
| 149.20.26.0/24 since Jun 2019 | Business | |
| 149.20.27.0/24 since Jun 2019 | Business | |
| 149.20.28.0/24 since Jun 2019 | Business | |
| 149.20.29.0/24 since Jun 2019 | Business | |
| 149.20.30.0/24 since Jun 2019 | Business | |
| 149.20.31.0/24 since Jun 2019 | Business | |
| 149.20.32.0/24 since Jun 2019 | Business | |
| 149.20.33.0/24 since Jun 2019 | Business | |
| 149.20.34.0/24 since Jun 2019 | Business | |
| 149.20.35.0/24 since Jun 2019 | Business | |
| 149.20.36.0/24 since Jun 2019 | Business | |
| 149.20.37.0/24 since Jun 2019 | Business | |
| 149.20.38.0/24 since Jun 2019 | Business | |
| 149.20.39.0/24 since Jun 2019 | Business | |
| 149.20.40.0/24 since Jun 2019 | Business | |
| 149.20.41.0/24 since Jun 2019 | Business | |
| 149.20.42.0/24 since Jun 2019 | Business | |
| 149.20.43.0/24 since Jun 2019 | Business | |
| 149.20.44.0/24 since Jun 2019 | Business | |
| 149.20.45.0/24 since Jun 2019 | Business | |
| 149.20.46.0/24 since Jun 2019 | Business | |
| 149.20.47.0/24 since Jun 2019 | Business | |
| 149.20.48.0/24 since Jun 2019 | Business | |
| 149.20.49.0/24 since Jun 2019 | Business | |
| 149.20.50.0/24 since Jun 2019 | Business | |
| 149.20.51.0/24 since Jun 2019 | Business | |
| 149.20.52.0/24 since Jun 2019 | Business | |
| 149.20.53.0/24 since Jun 2019 | Business | |
| 149.20.54.0/24 since Dec 2020 | Business | |
| 149.20.55.0/24 since Jun 2019 | Business | |
| 149.20.56.0/24 since Jun 2019 | Business | |
| 149.20.58.0/24 since Jun 2019 | Business | |
| 149.20.59.0/24 since Dec 2020 | Business | |
| 149.20.60.0/24 since Dec 2020 | Business | |
| 149.20.61.0/24 since Dec 2020 | Business | |
| 149.20.62.0/24 since Jun 2019 | Business | |
| 149.20.63.0/24 since Jun 2019 | Business | |
| 149.20.64.0/24 since Jun 2019 | Business | |
| 149.20.65.0/24 since Jun 2019 | Business | |
| 149.20.72.0/24 since Jun 2019 | Business | |
| 149.20.73.0/24 since Jun 2019 | Business | |
| 149.20.74.0/24 since Jun 2019 | Business | |
| 149.20.75.0/24 since Jun 2019 | Business | |
| 149.20.76.0/24 since Jun 2019 | Business | |
| 149.20.77.0/24 since Jun 2019 | Business | |
| 149.20.78.0/24 since Jun 2019 | Business | |
| 149.20.79.0/24 since Jun 2019 | Business | |
| 149.20.80.0/24 since Jun 2019 | Business | |
| 149.20.81.0/24 since Dec 2020 | Business | |
| 149.20.82.0/24 since Jun 2019 | Business | |
| 149.20.83.0/24 since Jun 2019 | Business | |
| 149.20.84.0/24 since Dec 2020 | Business | |
| 149.20.85.0/24 since Dec 2020 | Business | |
| 149.20.86.0/24 since Dec 2020 | Business | |
| 149.20.87.0/24 since Dec 2020 | Business | |
| 149.20.88.0/24 since Jun 2019 | Business | |
| 149.20.90.0/24 since Jun 2019 | Business | |
| 149.20.91.0/24 since Jun 2019 | Business | |
| 149.20.92.0/24 since Jun 2019 | Business | |
| 149.20.93.0/24 since Jun 2019 | Business | |
| 149.20.94.0/24 since Jun 2019 | Business | |
| 149.20.95.0/24 since Jun 2019 | Business | |
| 192.111.107.0/24 since Dec 2010 | Business | |
| 192.158.252.0/24 since Jun 2023 | Business | |
| 204.152.184.0/21 since Dec 2007 | Business | |
| 204.152.184.0/24 since Jun 2014 | Business | |
| 204.152.185.0/24 since Jun 2014 | Business | |
| 204.152.186.0/24 since Dec 2020 | Business | |
| 204.152.187.0/24 since Dec 2020 | Business | |
| 204.152.188.0/24 since Dec 2020 | Business | |
| 204.152.189.0/24 since Jun 2014 | Business | |
| 204.152.190.0/24 since Jun 2014 | Business | |
| 204.152.191.0/24 since Jun 2014 | Business |
Network & history
Profile
- Registered
- Jul 31, 1991
- Domain
- isc.org
- Website
- www.isc.org
- Industry
- Software Development
Routing patterns
How its announcements have moved
Arrivals