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Autonomous System

AS151868

VNNIC-4byte-ASBLOCK-AP

Announced IPs
512
CIDR prefixes
2
ASN
AS151868

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
36.50.62.0/23 512
0.0%
AS151868 VN Hanoi Cầu Giấy
36.50.63.0/24 256
0.0%
AS151868 VN

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS151868 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
36.50.63.0/24 11,063 2026-07-31 04:23:14

Frequently Asked Questions

What is AS151868?

AS151868 is an Autonomous System Number assigned to VNNIC-4byte-ASBLOCK-AP. 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 AS151868 announce?

AS151868 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Vietnam.

Who operates AS151868?

AS151868 is operated by VNNIC-4byte-ASBLOCK-AP. The organization is based in Vietnam. You can view all IP ranges and related ASNs on the organization page.

What country is AS151868 registered in?

AS151868 is registered in Vietnam. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-31 04:25:32 UTC
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