The IP API The IP API
// ASN

AS131905

JPRS-GTLD Japan Registry Services Co., Ltd., JP

Detailed information about the Autonomous System. Need another one? Look up a different ASN.

ASN
AS131905
Organization
Japan Registry Services Co., Ltd.
Description
JPRS-GTLD Japan Registry Services Co., Ltd., JP
Registry (RIR)
JPIRR
Created
2019-06-28
Updated
2025-09-04
IPv4 Prefixes
3
IPv6 Prefixes
1

IPv4 Prefixes

3 total
103.198.208.0/23
103.198.210.0/24
219.100.72.0/24

IPv6 Prefixes

1 total
2403:2880::/32

What is AS131905?

AS131905 is an Autonomous System Number (ASN) assigned to Japan Registry Services Co., Ltd.. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

Looking for more ASN data?

Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.