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Autonomous System

AS18186

Nebula Global LLC

Announced IPs
189,184
CIDR prefixes
200
ASN
AS18186

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

57/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS18186 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
49.128.220.0/24 AS18186, AS38705 2026-07-17 19:22:38

Network profile

Source: PeeringDB →
Network type Network Services
Traffic level 1-5Tbps
Geographic scope Not Disclosed
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-18186

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
38.182.224.0/19 8.2K
0.3%
Nebula Global LLC US
154.19.192.0/19 8.2K
0.0%
Nebula Global LLC US
154.23.128.0/19 8.2K
0.1%
Nebula Global LLC US
154.31.160.0/19 8.2K
0.0%
Nebula Global LLC US
154.31.224.0/19 8.2K
0.0%
Nebula Global LLC US
154.39.96.0/19 8.2K
0.0%
Nebula Global LLC US
206.119.0.0/19 8.2K
0.0%
Nebula Global LLC US
206.119.96.0/19 8.2K
0.0%
Nebula Global LLC US
207.57.32.0/19 8.2K
0.0%
US California Los Angeles
38.182.192.0/20 4.1K
6.3%
Nebula Global LLC US
149.104.176.0/20 4.1K
0.0%
Nebula Global LLC US
154.23.128.0/20 4.1K
0.1%
Nebula Global LLC US
154.23.208.0/20 4.1K
0.0%
Nebula Global LLC US
154.23.224.0/20 4.1K
0.0%
Nebula Global LLC US
154.26.192.0/20 4.1K
0.0%
Nebula Global LLC US
154.31.160.0/20 4.1K
0.0%
Nebula Global LLC US
154.31.176.0/20 4.1K
0.0%
Nebula Global LLC US
154.31.208.0/20 4.1K
0.0%
Nebula Global LLC US
154.31.240.0/20 4.1K
0.0%
Nebula Global LLC US
154.38.80.0/20 4.1K
0.0%
Nebula Global LLC US
154.39.96.0/20 4.1K
0.0%
Nebula Global LLC US
154.55.112.0/20 4.1K
0.0%
Nebula Global LLC US
154.64.192.0/20 4.1K
0.0%
Nebula Global LLC US
206.119.48.0/20 4.1K
0.0%
Nebula Global LLC US
207.56.240.0/20 4.1K
0.0%
Nebula Global LLC US
207.57.16.0/20 4.1K
0.0%
US California Los Angeles
207.57.64.0/20 4.1K
0.0%
US California Los Angeles
207.57.160.0/20 4.1K
0.0%
CN
38.162.120.0/21 2.0K
0.0%
Nebula Global LLC US California Los Angeles
38.182.128.0/21 2.0K
0.3%
Nebula Global LLC US
38.182.160.0/21 2.0K
0.1%
Nebula Global LLC US
38.182.184.0/21 2.0K
0.0%
Nebula Global LLC US
39.109.8.0/21 2.0K
0.3%
Nebula Global LLC HK
39.109.16.0/21 2.0K
0.5%
Nebula Global LLC HK
39.109.32.0/21 2.0K
0.1%
Nebula Global LLC HK
149.104.48.0/21 2.0K
0.0%
Nebula Global LLC US
149.104.152.0/21 2.0K
0.0%
Nebula Global LLC US
149.104.160.0/21 2.0K
0.0%
Nebula Global LLC US
154.23.152.0/21 2.0K
0.0%
Nebula Global LLC US
154.23.216.0/21 2.0K
0.0%
Nebula Global LLC US
154.23.224.0/21 2.0K
0.0%
Nebula Global LLC US
154.26.192.0/21 2.0K
0.0%
Nebula Global LLC US
154.26.200.0/21 2.0K
0.0%
HK
154.31.184.0/21 2.0K
0.0%
Nebula Global LLC US
154.31.208.0/21 2.0K
0.0%
Nebula Global LLC US
154.31.216.0/21 2.0K
0.0%
Nebula Global LLC US
154.31.232.0/21 2.0K
0.0%
Nebula Global LLC US
154.38.64.0/21 2.0K
0.0%
Nebula Global LLC US
154.38.120.0/21 2.0K
0.0%
Nebula Global LLC US
154.38.232.0/21 2.0K
0.0%
Nebula Global LLC US
154.39.48.0/21 2.0K
0.0%
Nebula Global LLC US
154.39.88.0/21 2.0K
0.0%
Nebula Global LLC US
206.119.32.0/21 2.0K
0.0%
Nebula Global LLC US
206.119.56.0/21 2.0K
0.0%
Nebula Global LLC US
207.56.232.0/21 2.0K
0.0%
Nebula Global LLC US
207.57.0.0/21 2.0K
0.0%
HK
207.57.104.0/21 2.0K
0.0%
CN
207.57.176.0/21 2.0K
0.0%
CN
38.162.120.0/22 1.0K
0.0%
HK
38.182.136.0/22 1.0K
0.1%
Nebula Global LLC US
38.182.148.0/22 1.0K
0.2%
Nebula Global LLC US
38.182.180.0/22 1.0K
0.1%
Nebula Global LLC US
38.182.220.0/22 1.0K
0.0%
Nebula Global LLC US
39.109.4.0/22 1.0K
1.0%
Nebula Global LLC HK
39.109.40.0/22 1.0K
0.2%
Nebula Global LLC HK
45.196.244.0/22 1.0K
0.0%
Nebula Global LLC SC
149.104.36.0/22 1.0K
0.0%
Nebula Global LLC US
149.104.44.0/22 1.0K
0.0%
Nebula Global LLC US
149.104.144.0/22 1.0K
0.0%
Nebula Global LLC US
149.104.152.0/22 1.0K
0.0%
Nebula Global LLC US
149.104.172.0/22 1.0K
0.0%
Nebula Global LLC US
154.23.144.0/22 1.0K
0.0%
Nebula Global LLC US
154.23.208.0/22 1.0K
0.0%
Nebula Global LLC US
154.23.212.0/22 1.0K
0.0%
HK
154.23.232.0/22 1.0K
0.0%
Nebula Global LLC US
154.26.196.0/22 1.0K
0.0%
HK
154.26.200.0/22 1.0K
0.0%
Nebula Global LLC US
154.31.164.0/22 1.0K
0.0%
Nebula Global LLC US
154.31.176.0/22 1.0K
0.0%
Nebula Global LLC US
154.31.212.0/22 1.0K
0.0%
Nebula Global LLC US
154.31.224.0/22 1.0K
0.0%
Nebula Global LLC US
154.38.76.0/22 1.0K
0.0%
Nebula Global LLC US
154.38.96.0/22 1.0K
0.0%
Nebula Global LLC US
154.38.104.0/22 1.0K
0.0%
Nebula Global LLC US
154.38.240.0/22 1.0K
0.0%
Nebula Global LLC US
154.38.248.0/22 1.0K
0.0%
Nebula Global LLC US
154.39.60.0/22 1.0K
0.0%
Nebula Global LLC US
154.39.88.0/22 1.0K
0.0%
HK Eastern District Chai Wan
154.39.92.0/22 1.0K
0.0%
Nebula Global LLC US
171.22.192.0/22 1.0K
0.0%
Nebula Global LLC US
206.119.44.0/22 1.0K
0.0%
Nebula Global LLC US
206.119.48.0/22 1.0K
0.0%
Nebula Global LLC US
206.119.92.0/22 1.0K
0.0%
Nebula Global LLC US
207.57.0.0/22 1.0K
0.0%
Nebula Global LLC US
207.57.8.0/22 1.0K
0.0%
JP Tokyo Tokyo
207.57.12.0/22 1.0K
0.0%
SG
223.26.76.0/22 1.0K
86.0%
Nebula Global LLC TW
38.182.138.0/23 512
0.0%
Nebula Global LLC US
38.182.140.0/23 512
0.0%
Nebula Global LLC US
38.182.144.0/23 512
0.2%
Nebula Global LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS18186 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
154.31.228.0/24 67,688 2026-07-18 12:00:39
154.39.112.0/20 34,602 2026-07-18 12:00:39
38.182.192.0/20 26,099 2026-07-18 11:59:17
154.31.223.0/24 24,542 2026-07-18 12:01:22
154.31.235.0/24 24,310 2026-07-18 12:00:39
154.23.142.0/24 24,266 2026-07-18 12:00:39
154.31.238.0/24 23,854 2026-07-18 12:00:39
154.31.222.0/24 22,663 2026-07-18 12:00:39
149.104.176.0/20 20,714 2026-07-18 12:00:39
206.119.0.0/19 14,345 2026-07-18 12:01:19
154.31.218.0/24 12,628 2026-07-18 12:00:39
154.31.237.0/24 12,517 2026-07-18 12:00:39
206.119.52.0/24 12,439 2026-07-18 12:00:39
154.31.233.0/24 12,390 2026-07-18 12:00:39
154.31.236.0/24 12,358 2026-07-18 12:00:39
154.31.173.0/24 12,113 2026-07-18 12:00:39
154.31.168.0/24 11,992 2026-07-18 12:01:19
154.23.144.0/24 11,853 2026-07-18 12:00:39
154.26.206.0/24 11,825 2026-07-18 12:00:39
154.31.162.0/24 11,822 2026-07-18 12:01:22
154.26.199.0/24 11,766 2026-07-18 12:00:39
154.31.170.0/24 11,707 2026-07-18 12:00:39
154.23.141.0/24 11,656 2026-07-18 12:00:39
154.31.171.0/24 11,515 2026-07-18 12:01:22
154.38.81.0/24 11,485 2026-07-18 12:01:19
154.31.219.0/24 11,387 2026-07-18 12:00:39
154.31.220.0/24 11,176 2026-07-18 12:00:39
206.119.50.0/24 11,100 2026-07-18 12:01:17
154.31.174.0/24 10,946 2026-07-18 12:01:22
154.26.202.0/24 10,932 2026-07-18 12:00:39
154.23.143.0/24 10,905 2026-07-18 12:00:39
206.119.111.0/24 10,851 2026-07-18 12:00:39
154.26.195.0/24 10,815 2026-07-18 12:01:22
154.23.227.0/24 10,768 2026-07-18 12:00:39
154.19.192.0/19 10,755 2026-07-18 12:01:17
154.23.219.0/24 10,754 2026-07-18 12:01:24
154.26.203.0/24 10,688 2026-07-18 12:01:19
149.104.37.0/24 10,684 2026-07-18 12:00:40
154.26.200.0/24 10,672 2026-07-18 12:01:19
154.38.232.0/24 10,641 2026-07-18 12:01:17
154.31.221.0/24 10,636 2026-07-18 12:01:19
45.196.247.0/24 10,612 2026-07-18 11:59:47
154.23.231.0/24 10,563 2026-07-18 12:01:19
206.119.105.0/24 10,550 2026-07-18 12:01:17
154.26.198.0/24 10,534 2026-07-18 12:00:39
154.31.181.0/24 10,500 2026-07-18 12:00:39
154.31.169.0/24 10,469 2026-07-18 12:00:39
206.119.118.0/24 10,467 2026-07-18 12:00:39
154.39.108.0/24 10,436 2026-07-18 12:01:10
206.119.104.0/24 10,412 2026-07-18 12:01:10

Showing top 50 of 630 announced prefixes by sample volume.

Frequently Asked Questions

What is AS18186?

AS18186 is an Autonomous System Number assigned to Nebula Global LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS18186 announce?

AS18186 announces 189.2K IPv4 addresses distributed across 200 routed CIDR prefixes. The network is registered in Hong Kong.

Who operates AS18186?

AS18186 is operated by Nebula Global LLC. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.

What country is AS18186 registered in?

AS18186 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 12:40:28 UTC
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