All ASNs

Autonomous System details for AS154491

AS154491
NETCORE COMPANY LIMITED • netcore.com.vn

AS154491 — NETCORE COMPANY LIMITED

AS Name
NETCORE-VN
Country
Vietnam (VN)
Website
Number of IPv4
1,280
Number of IPv6
1.21 × 1024
ASN type
Business
Status
Allocated
Registry
APNIC
Allocated
February 09, 2026
Last updated
February 09, 2026

IP Ranges

4 IPv4 prefixes, 1 IPv6 prefixes
Prefix Company Number of IPs
103.239.81.0/24 VIET NAM VNNS TECHNOLOGIES JOINT STOCK COMPANY 256
151.158.130.0/23 512
151.158.130.0/24 256
151.158.131.0/24 256
2001:df6:ab40::/48 1.21 × 1024

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS154491

0 peers

AS154491 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS154491

1 upstreams

AS154491 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS154491 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS154491

0 downstreams

AS154491 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.