AS20129
Mizuho Americas Services LLC
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 8.11.195.0/24 | 256 |
0.4%
|
Mizuho Americas Services LLC | US | — | — |
| 192.129.92.0/24 | 256 |
0.0%
|
Mizuho Americas Services LLC | US | — | — |
| 208.85.105.0/24 | 256 |
22.7%
|
Mizuho Americas Services LLC | US | New York | Staten Island |
| 208.85.107.0/24 | 256 |
2.3%
|
Mizuho Americas Services LLC | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS20129 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 8.11.195.0/24 | 9,555 | 2026-08-03 05:18:37 |
| 208.85.105.0/24 | 9,463 | 2026-08-03 05:18:37 |
| 208.85.107.0/24 | 9,444 | 2026-08-03 05:18:37 |
| 192.129.92.0/24 | 9,108 | 2026-08-03 05:18:37 |
Frequently Asked Questions
What is AS20129?
AS20129 is an Autonomous System Number assigned to Mizuho Americas Services LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS20129 announce?
AS20129 announces 1.0K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in United States.
Who operates AS20129?
AS20129 is operated by Mizuho Americas Services LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS20129 registered in?
AS20129 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
