asn.dev

Autonomous system

AS18186 NEBULA-GLOBAL

Hosting DROP-listed space ARIN

IPv4 addresses 205K 128 prefixes
IPv6 prefixes 13 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 5 recorded by PCH
Upstreams 24 14 downstream
Flagged prefixes 0 none

Summary

Nebula Global

United States of America · AI-generated

hosting business cloud streaming

NEBULA-GLOBAL is the AS handle for Nebula Global LLC, a network services provider.

What it's used for

  • The address space carries infrastructure for cloud and streaming services, evidenced by registrant netnames such as STARCLOUDGLOBAL-HK and STARCLOUD-GLOBAL-CGNT-NET-12.
  • The AS announces 216,320 IPv4 addresses across 130 prefixes and 10 IPv6 prefixes, while maintaining 61 observed neighbours, indicating a role focused on hosting and business connectivity rather than pure transit.

Notable

  • Registrants include StarCloudGlobal-HK, STARCLOUD GLOBAL PTE. LTD., and NTT America, Inc.; VIPAR, showing a mix of corporate entities and leased space within the announced inventory.
  • The address inventory is heavily subdivided into /19 and /20 blocks, primarily in the 154.0.0.0/8 and 206.0.0.0/8 ranges, consistent with a large-scale internal corporate or cloud estate.

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 5 exchanges in 4 countries, largest first.

ExchangeLocationTheir address
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.230.151
BroadBand Internet eXchange TokyoTokyo, Japan101.203.90.57
Hong Kong Internet ExchangeHong Kong, China123.255.90.173
Singapore Internet ExchangeSingapore, Singapore103.16.103.9
Taipei Internet Exchange (TPIX)Taipei, Taiwan203.163.222.184

Transit providers

24 upstream, 14 downstream and 54 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC7,993
AS2914NTT America, Inc.7,156
AS7473Singapore Telecommunications Ltd4,501
AS6939Hurricane Electric LLC3,835
AS4637Telstra Global3,465
AS3491PCCW Global (HK) Ltd.2,837
AS17676SoftBank Corp.1,530
AS17408AboveNet Communications Taiwan870

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 128 prefixes · 205K addresses IPv6 13 prefixes

CountryNamePrefixes
USUnited States of America141

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS18186
Registry name
NEBULA-GLOBAL
Registrant
Nebula Global LLC
Abuse contact
abuse@nebulaglobal.net
Registered
2024-09-25
Last changed
2026-06-11
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
12% valid · 76 valid, 561 with no ROA 1 RPKI-invalid
ROAs
67 authorising AS18186
ASPA
no ASPA record
IRR
99.1% registered · 632 of 638 announcements 6 other origin
Route objects
1,585 naming AS18186

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.

1 DROP match Announced space overlapping the DROP prefix list.

AnnouncedDROP entryRecord
103.179.148.0/23103.179.148.0/24SBL639191

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,772 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

4 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.

PrefixAdvisoryPublished
154.38.104.144China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems2026-08-26
154.38.105.109China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems2026-08-26
154.38.105.11China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems2026-08-26
154.38.105.39China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems2026-08-26

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