asn.dev

Autonomous system

AS203724 MGG4-AS1 OCITOKEN::203724:96bdd83e28cd70a1d1f9b623bcbbf8c45708843daaaca2472da4cfd179c96b5b

Unclassified RIPE

IPv4 addresses 24.32K 34 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 28 recorded by PCH
Upstreams 45 0 downstream
Flagged prefixes 0 none

Summary

Skyhigh Security

Germany · AI-generated

security business hosting

The AS handle MGG4-AS1 is held by Skyhigh Security.

What it's used for

  • The address space carries security infrastructure, evidenced by netnames SSL-1133 and MXL1 registered to SKYHIGH SECURITY LLC.
  • The AS announces 24320 IPv4 addresses across 34 prefixes and 2 IPv6 prefixes, with 200 observed neighbours, indicating a transit or peering-heavy role for a business network.
  • Traffic from this AS consists of web/API endpoints and security services, as Skyhigh Security provides cloud-based threat intelligence and security operations.

Notable

  • Registrants for the majority of the largest prefixes are SKYHIGH SECURITY LLC, while smaller blocks are registered to Musarubra Germany GmbH, the original holder.
  • The address inventory is dominated by the 131.229.0.0/16 range, with additional blocks in 208.81.0.0/16, 208.65.0.0/16, and 185.125.0.0/16.

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

Recorded at 28 exchanges in 12 countries, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.212.100
DE-CIX FrankfurtFrankfurt, Germany80.81.194.128
LINX LON1London, United Kingdom195.66.225.100
AMS-IX AmsterdamAmsterdam, Netherlands80.249.212.80
France-IX ParisParis, France37.49.236.56
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.230.231
Milan Internet ExchangeMilan, Italy217.29.67.97
Equinix Internet Exchange AshburnAshburn, United States206.126.237.182

Transit providers

45 upstream, 0 downstream and 46 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS31898Oracle Corporation2,067
AS3356Level 3 Parent, LLC1,013
AS3257GTT Communications Inc.622
AS6939Hurricane Electric LLC402
AS7195EDGEUNO S.A.S290
AS3491PCCW Global (HK) Ltd.256
AS18229CtrlS240
AS34372VegaSystems GmbH & Co. KG209

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 34 prefixes · 24.32K addresses IPv6 2 prefixes

CountryNamePrefixes
DEGermany36

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203724
Registry name
MGG4-AS1
Registrant
Musarubra Germany GmbH
Abuse contact
abuse@skyhighsecurity.com
Registered
2015-11-11
Last changed
2026-03-23
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 96 valid, 0 with no ROA
ROAs
108 authorising AS203724
ASPA
no ASPA record
IRR
100% registered · 96 of 96 announcements
Route objects
130 naming AS203724

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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