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Autonomous System

AS199737

Nerijus Kriauciunas

Announced IPs
3,328
CIDR prefixes
12
ASN
AS199737

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS199737 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
23.26.249.0/24 AS46450, AS199737 2026-09-12 22:41:07

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 20-50Gbps
Geographic scope North America
Traffic ratio Balanced
Peering policy Open

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS199737 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
140.228.27.0/24 13,954 2026-09-12 21:03:42
72.14.143.0/24 13,715 2026-09-12 21:01:05
216.185.43.0/24 13,647 2026-09-12 21:00:27
89.42.29.0/24 13,404 2026-09-12 21:01:05
23.26.249.0/24 13,399 2026-09-12 21:01:05
151.244.11.0/24 13,152 2026-09-12 21:03:42
151.244.106.0/24 13,117 2026-09-12 21:03:42
45.154.107.0/24 13,085 2026-09-12 21:01:05
109.111.38.0/23 13,074 2026-09-12 21:01:05
140.150.234.0/24 13,063 2026-09-12 21:03:42
181.214.155.0/24 13,024 2026-09-12 21:03:42
141.11.242.0/24 12,185 2026-09-12 21:03:42
147.78.196.0/24 12,158 2026-09-12 21:03:42

Frequently Asked Questions

What is AS199737?

AS199737 is an Autonomous System Number assigned to Nerijus Kriauciunas. 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 AS199737 announce?

AS199737 announces 3.3K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in Lithuania.

Who operates AS199737?

AS199737 is operated by Nerijus Kriauciunas. The organization is based in Lithuania. You can view all IP ranges and related ASNs on the organization page.

What country is AS199737 registered in?

AS199737 is registered in Lithuania. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-12 20:54:06 UTC
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