AS19661
Susquehanna International Group, LLP
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 →
Network profile
Source: PeeringDB →Present at 3 internet exchanges: Equinix Ashburn, Equinix Chicago, Equinix New York
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS19661 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 |
|---|---|---|
| 141.162.81.0/24 | 22,959 | 2026-09-14 18:05:31 |
| 141.162.113.0/24 | 22,751 | 2026-09-14 18:13:28 |
| 141.162.0.0/16 | 21,039 | 2026-09-14 18:05:28 |
| 141.162.42.0/24 | 18,827 | 2026-09-14 18:02:30 |
| 141.162.101.0/24 | 12,590 | 2026-09-14 18:05:28 |
| 141.162.128.0/17 | 12,518 | 2026-09-14 18:08:19 |
| 141.162.0.0/18 | 12,498 | 2026-09-14 18:08:19 |
| 141.162.64.0/19 | 12,489 | 2026-09-14 18:08:19 |
| 141.162.110.0/24 | 10,722 | 2026-09-14 18:05:28 |
| 141.162.4.0/24 | 10,161 | 2026-09-14 18:02:12 |
| 141.162.102.0/24 | 8,562 | 2026-09-14 18:05:33 |
| 141.162.255.0/24 | 8,298 | 2026-09-14 18:02:12 |
| 141.162.15.0/24 | 4,247 | 2026-09-10 19:15:09 |
Frequently Asked Questions
What is AS19661?
AS19661 is an Autonomous System Number assigned to Susquehanna International Group, LLP. 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 AS19661 announce?
AS19661 announces 65.3K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in United States.
Who operates AS19661?
AS19661 is operated by Susquehanna International Group, LLP. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS19661 registered in?
AS19661 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
