Country
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ASN LANDING PAGE
AS131921
GMOCL - GMO GlobalSign Holdings K.K.
Last updated · Jul 20, 2026
Total prefixes
66
IPv4 prefixes
53
IPv6 prefixes
13
ASN summary
How to read the scale of AS131921
GMOCL - GMO GlobalSign Holdings K.K. currently reports 66 prefixes and 12 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
GMOCL - GMO GlobalSign Holdings K.K. is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS131921 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS131921 ASN lookupAS131921 BGPAS131921 peersAS131921 prefixesAS131921 upstreamsGMOCL - GMO GlobalSign Holdings K.K. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 133.117.148.0/22 | AS131921 | — |
| 133.117.148.0/23 | AS131921 | — |
| 133.117.150.0/23 | AS131921 | — |
| 133.117.152.0/21 | AS131921 | — |
| 133.117.152.0/22 | AS131921 | — |
| 133.117.156.0/22 | AS131921 | — |
| 153.122.0.0/16 | AS131921 | — |
| 153.122.0.0/20 | AS131921 | — |
| 153.122.112.0/20 | AS131921 | — |
| 153.122.128.0/20 | AS131921 | — |
| 153.122.144.0/20 | AS131921 | — |
| 153.122.16.0/20 | AS131921 | — |
| 153.122.160.0/20 | AS131921 | — |
| 153.122.176.0/20 | AS131921 | — |
| 153.122.192.0/20 | AS131921 | — |
| 153.122.208.0/20 | AS131921 | — |
| 153.122.224.0/20 | AS131921 | — |
| 153.122.240.0/20 | AS131921 | — |
| 153.122.32.0/20 | AS131921 | — |
| 153.122.48.0/20 | AS131921 | — |
| 153.122.64.0/20 | AS131921 | — |
| 153.122.80.0/20 | AS131921 | — |
| 153.122.96.0/20 | AS131921 | — |
| 153.123.0.0/20 | AS131921 | — |
| 153.123.0.0/24 | AS131921 | — |
| 153.123.16.0/21 | AS131921 | — |
| 153.123.16.0/22 | AS131921 | — |
| 153.123.2.0/24 | AS131921 | — |
| 153.123.20.0/22 | AS131921 | — |
| 153.123.3.0/24 | AS131921 | — |
| 153.123.4.0/23 | AS131921 | — |
| 153.123.6.0/23 | AS131921 | — |
| 153.123.8.0/23 | AS131921 | — |
| 153.124.128.0/20 | AS131921 | — |
| 153.124.128.0/23 | AS131921 | — |
| 153.124.128.0/24 | AS131921 | — |
| 153.124.132.0/24 | AS131921 | — |
| 153.124.144.0/21 | AS131921 | — |
| 153.124.144.0/22 | AS131921 | — |
| 153.124.148.0/22 | AS131921 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS131921 represent?
AS131921 is an autonomous system number. The current source associates it with GMOCL - GMO GlobalSign Holdings K.K. and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS131921 page?
They help explain the scale, interconnection depth, and route structure of AS131921. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS131921?
Open a concrete IP page to check how the address maps into AS131921, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
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