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Autonomous System

AS399077

Tcloudnet

Announced IPs
136,960
CIDR prefixes
195
ASN
AS399077

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS399077 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)
206.238.115.0/24 AS198474, AS399077 2026-09-11 05:25:52
206.238.224.0/24 AS150150, AS399077 2026-09-11 05:25:52

Network profile

Source: PeeringDB →
Network type Content
Traffic level 300-500Gbps
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open
IRR record RADB::AS-TCLOUD

Present at 7 internet exchanges: BBIX Singapore, SGIX: Peering LAN, Equinix Singapore, BBIX Hong Kong, Equinix Hong Kong, Equinix San Jose, BBIX US-West

AS399077 — global IP footprint

Cities where AS399077 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
154.211.96.0/19 8.2K
0.0%
Tcloudnet SC
156.240.224.0/19 8.2K
0.0%
Tcloudnet SC
156.251.32.0/19 8.2K
0.0%
Tcloudnet SC
206.238.0.0/19 8.2K
11.2%
Tcloudnet US
206.238.96.0/19 8.2K
0.0%
Tcloudnet US
154.82.112.0/20 4.1K
0.0%
Tcloudnet SC
154.91.96.0/20 4.1K
0.0%
Tcloudnet SC
154.211.96.0/20 4.1K
0.0%
Tcloudnet SC
154.211.112.0/20 4.1K
0.0%
Tcloudnet HK
156.240.192.0/20 4.1K
0.0%
Tcloudnet SC
156.240.224.0/20 4.1K
0.0%
Tcloudnet SC
156.251.16.0/20 4.1K
0.0%
Tcloudnet SC
156.251.32.0/20 4.1K
0.0%
Tcloudnet HK
156.251.48.0/20 4.1K
0.0%
Tcloudnet SC
206.238.0.0/20 4.1K
22.4%
Tcloudnet US
206.238.16.0/20 4.1K
0.0%
Tcloudnet HK
206.238.96.0/20 4.1K
0.0%
Tcloudnet US
38.127.240.0/21 2.0K
0.0%
Tcloudnet US California San Jose
154.82.72.0/21 2.0K
0.0%
Tcloudnet SC
154.82.80.0/21 2.0K
0.0%
Tcloudnet SC
154.82.96.0/21 2.0K
0.0%
Tcloudnet SC
154.82.120.0/21 2.0K
0.0%
Tcloudnet SC
154.91.64.0/21 2.0K
0.0%
Tcloudnet SC
154.91.80.0/21 2.0K
0.0%
Tcloudnet SC
154.91.104.0/21 2.0K
0.0%
Tcloudnet SC
154.91.112.0/21 2.0K
0.0%
Tcloudnet SC
154.211.72.0/21 2.0K
0.0%
Tcloudnet SC
154.211.88.0/21 2.0K
0.0%
Tcloudnet SC
154.211.96.0/21 2.0K
0.0%
Tcloudnet SC
154.211.104.0/21 2.0K
0.0%
Tcloudnet HK
154.211.112.0/21 2.0K
0.0%
Tcloudnet SC
156.240.200.0/21 2.0K
0.0%
Tcloudnet SC
156.240.216.0/21 2.0K
0.0%
Tcloudnet SC
156.240.224.0/21 2.0K
0.0%
Tcloudnet SC
156.240.240.0/21 2.0K
0.0%
Tcloudnet SC
156.240.248.0/21 2.0K
0.0%
Tcloudnet HK
156.251.8.0/21 2.0K
0.0%
Tcloudnet SC
156.251.16.0/21 2.0K
0.0%
Tcloudnet SC
156.251.56.0/21 2.0K
0.0%
Tcloudnet HK
206.238.8.0/21 2.0K
0.0%
Tcloudnet HK
206.238.24.0/21 2.0K
0.0%
Tcloudnet US
206.238.32.0/21 2.0K
0.0%
Tcloudnet US
206.238.48.0/21 2.0K
0.0%
Tcloudnet US
206.238.88.0/21 2.0K
0.0%
Tcloudnet US
206.238.112.0/21 2.0K
0.0%
Tcloudnet US
206.238.136.0/21 2.0K
0.0%
Tcloudnet US
206.238.168.0/21 2.0K
0.0%
Tcloudnet US
206.238.176.0/21 2.0K
0.0%
Tcloudnet US
206.238.192.0/21 2.0K
0.0%
Tcloudnet US
38.127.240.0/22 1.0K
0.0%
Tcloudnet US
154.82.72.0/22 1.0K
0.0%
Tcloudnet HK
154.82.84.0/22 1.0K
0.0%
Tcloudnet HK
154.82.92.0/22 1.0K
0.0%
Tcloudnet SC
154.82.108.0/22 1.0K
0.0%
Tcloudnet SC
154.82.116.0/22 1.0K
0.0%
Tcloudnet SC
154.91.72.0/22 1.0K
0.0%
Tcloudnet SC
154.91.80.0/22 1.0K
0.0%
Tcloudnet SC
154.91.84.0/22 1.0K
0.0%
Tcloudnet SC
154.91.92.0/22 1.0K
0.0%
Tcloudnet SC
154.91.96.0/22 1.0K
0.0%
Tcloudnet HK
154.91.100.0/22 1.0K
0.0%
Tcloudnet SC
154.91.108.0/22 1.0K
0.0%
Tcloudnet HK
154.91.120.0/22 1.0K
0.0%
Tcloudnet SC
154.211.64.0/22 1.0K
0.0%
Tcloudnet SC
154.211.80.0/22 1.0K
0.0%
Tcloudnet SC
154.211.88.0/22 1.0K
0.0%
Tcloudnet SC
154.211.100.0/22 1.0K
0.0%
Tcloudnet HK
154.211.104.0/22 1.0K
0.0%
Tcloudnet SC
154.211.120.0/22 1.0K
0.0%
Tcloudnet SC
156.240.196.0/22 1.0K
0.0%
Tcloudnet SC
156.240.208.0/22 1.0K
0.0%
Tcloudnet SC
156.240.224.0/22 1.0K
0.0%
Tcloudnet SC
156.240.232.0/22 1.0K
0.0%
Tcloudnet SC
156.240.240.0/22 1.0K
0.0%
Tcloudnet SC
156.240.248.0/22 1.0K
0.0%
Tcloudnet SC
156.248.76.0/22 1.0K
0.0%
Tcloudnet SC
156.251.8.0/22 1.0K
0.0%
Tcloudnet HK
156.251.16.0/22 1.0K
0.0%
Tcloudnet HK
156.251.36.0/22 1.0K
0.0%
Tcloudnet SC
156.251.40.0/22 1.0K
0.0%
Tcloudnet SC
206.238.16.0/22 1.0K
0.0%
Tcloudnet US
206.238.60.0/22 1.0K
0.0%
Tcloudnet US
206.238.112.0/22 1.0K
0.0%
Tcloudnet US
206.238.120.0/22 1.0K
0.0%
Tcloudnet US
206.238.132.0/22 1.0K
92.4%
Tcloudnet US
206.238.156.0/22 1.0K
0.0%
Tcloudnet US
206.238.164.0/22 1.0K
0.0%
Tcloudnet US
206.238.184.0/22 1.0K
0.0%
Tcloudnet US
206.238.208.0/22 1.0K
0.0%
Tcloudnet US
206.238.236.0/22 1.0K
0.0%
Tcloudnet US
38.77.232.0/23 512
0.0%
Tcloudnet US
38.127.246.0/23 512
0.0%
Tcloudnet US
154.82.66.0/23 512
0.0%
Tcloudnet SC
154.82.76.0/23 512
0.0%
Tcloudnet HK
154.82.82.0/23 512
0.0%
Tcloudnet HK
154.82.90.0/23 512
0.0%
Tcloudnet SC
154.82.98.0/23 512
0.0%
Tcloudnet SC
154.82.100.0/23 512
0.0%
Tcloudnet SC
154.82.104.0/23 512
0.0%
Tcloudnet SC
154.82.108.0/23 512
0.0%
Tcloudnet HK

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS399077 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
154.211.117.0/24 587,219 2026-09-11 04:55:57
154.211.116.0/24 587,120 2026-09-11 03:43:21
154.211.118.0/24 586,856 2026-09-11 04:56:01
154.211.112.0/24 586,837 2026-09-11 03:43:21
154.211.114.0/24 586,837 2026-09-11 03:43:21
154.211.113.0/24 586,834 2026-09-11 04:56:14
154.211.120.0/24 586,826 2026-09-11 04:56:09
154.211.105.0/24 586,687 2026-09-11 03:43:21
154.211.115.0/24 586,637 2026-09-11 03:43:21
154.211.73.0/24 586,540 2026-09-11 03:43:21
154.211.66.0/24 586,518 2026-09-11 03:43:21
154.211.85.0/24 586,512 2026-09-11 04:56:03
154.211.81.0/24 586,512 2026-09-11 03:43:21
154.211.84.0/24 586,510 2026-09-11 04:55:59
156.251.22.0/24 586,496 2026-09-11 03:43:21
156.251.21.0/24 586,431 2026-09-11 03:43:21
154.211.102.0/24 586,341 2026-09-11 03:43:21
154.211.77.0/24 586,306 2026-09-11 03:43:21
154.211.106.0/24 586,301 2026-09-11 03:43:21
154.211.76.0/24 586,298 2026-09-11 03:43:21
154.211.78.0/24 586,290 2026-09-11 03:43:21
154.211.79.0/24 586,246 2026-09-11 04:56:12
154.211.107.0/24 586,233 2026-09-11 03:43:21
154.211.80.0/24 586,227 2026-09-11 04:56:17
156.251.23.0/24 586,196 2026-09-11 03:43:21
156.240.251.0/24 586,188 2026-09-11 04:56:12
156.251.58.0/24 586,140 2026-09-11 04:55:58
154.211.82.0/24 586,109 2026-09-11 03:43:21
156.251.59.0/24 585,964 2026-09-11 04:56:02
156.251.53.0/24 585,866 2026-09-11 04:56:11
156.251.54.0/24 585,845 2026-09-11 04:56:16
156.240.252.0/24 585,843 2026-09-11 04:56:17
156.251.61.0/24 585,780 2026-09-11 04:56:10
156.251.55.0/24 585,545 2026-09-11 03:43:21
156.251.16.0/24 585,505 2026-09-11 03:43:21
156.251.18.0/24 585,496 2026-09-11 03:43:21
156.251.56.0/24 585,456 2026-09-11 03:43:21
156.251.3.0/24 585,405 2026-09-11 03:43:21
156.251.19.0/24 585,323 2026-09-11 03:43:21
156.240.222.0/24 585,276 2026-09-11 04:55:58
156.240.217.0/24 585,233 2026-09-11 04:56:11
156.251.15.0/24 585,224 2026-09-11 03:43:21
156.251.4.0/24 585,209 2026-09-11 03:43:21
156.251.43.0/24 585,167 2026-09-11 03:43:21
156.240.225.0/24 585,155 2026-09-11 04:56:09
156.240.223.0/24 585,155 2026-09-11 04:56:01
156.240.249.0/24 585,123 2026-09-11 03:43:21
156.240.218.0/24 585,102 2026-09-11 04:56:15
156.251.42.0/24 585,038 2026-09-11 03:43:21
156.240.241.0/24 585,038 2026-09-11 03:43:21

Showing top 50 of 511 announced prefixes by sample volume.

Frequently Asked Questions

What is AS399077?

AS399077 is an Autonomous System Number assigned to Tcloudnet. 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 AS399077 announce?

AS399077 announces 137.0K IPv4 addresses distributed across 195 routed CIDR prefixes. The network is registered in United States.

Who operates AS399077?

AS399077 is operated by Tcloudnet. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS399077 registered in?

AS399077 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 05:26:08 UTC
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