asn.dev

Autonomous system

AS37907 DIGIROCK - DigiRock, Inc.

Hosting ARIN

IPv4 addresses 5.12K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

GMO DigiRock

Japan · AI-generated

hosting business japan

The AS handle DIGIROCK is held by GMO DigiRock.

What it's used for

  • The address space carries web hosting infrastructure, evidenced by reverse DNS entries such as core-202-172-26-0.digirock.jp and core-103.242.29.0.valueserver.jp.
  • The network announces 5120 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio consistent with a hosting provider rather than a transit carrier.
  • Traffic from this AS consists of web server endpoints and API services for clients hosted by the operator.

Notable

  • All registrants for the announced prefixes are listed as Japan Network Information Center; IRT-JPNIC-JP with the netname DIGIROCK-CIDR-BLK-JP, aligning with the AS holder.
  • DigiRock, Inc. has operated under the name GMO DigiRock since 2013, reflecting its integration into the GMO Internet Group.
  • The inventory comprises three distinct IPv4 blocks: 183.90.176.0/21, 202.172.24.0/21, and 103.242.28.0/22.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7506GMO Internet, Inc.175
AS13335Cloudflare, Inc.129

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-06, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 5.12K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS37907
Registry name
DIGIROCK
Registered
2006-01-30
Last changed
2006-12-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS37907
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
23 naming AS37907

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 454 networks and 1,854 prefixes, as published 2026-11-06. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check