AS11509 Tierzero 🇺🇸 US
Announcing 15 prefixes, seen at the RIS collectors.
IPv4 prefixes
14
118,528 (463 × /24)
IPv6 prefixes
1
4,096 × /48
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS11509
- Name
- Tierzero
- Organisation
- Tierzero
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1998-09-15
- Network type
- Cable/DSL/ISP
- Traffic levels
- 50-100Gbps
- Scope
- North America
- Peering policy
- Selective
- IRR as-set
- AS11509
- Website
- http://www.tierzero.com/
- PeeringDB
- net/13485
- Facilities
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
1 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2604:4bc0::/36 v6 | no ROA | 31 | 34549646111509 | 2026-09-18 |