Autonomous System details

AS203997

XTDef Limited  ·  xtdef.com

Hong Kong

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS203997 – XTDef Limited

Field Value
Country Hong Kong
Website xtdef.com
Hosted domains 0
IPv4 addresses 1,024
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type Business
Registry ripe
Allocated 3 months ago on Nov 05, 2025
Updated 2 months ago on Dec 14, 2025

IP Ranges

Netblock Company Num of IPs
81.18.60.0/24 XTDef Limited 256
89.23.94.0/24 XTDef Limited 256
151.244.252.0/24 XTDef Limited 256
185.205.32.0/24 XTDef Limited 256
Netblock Company
2a10:e8c0::/32 XTDef Limited
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS203997
                                                OrgID:          AS203997
                                                ASName:         AS203997
                                                ASNumber:       AS203997
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are no domains currently hosted on this ASN.

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There are 2 peers for this ASN.

Peers Name
AS35661 VIRTUA SYSTEMS SAS
AS40994 Hohl IT e.U.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS35661 VIRTUA SYSTEMS SAS
AS40994 Hohl IT e.U.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
185.205.32.1 AS203997 XTDef Limited 0.65ms from Frankfurt am Main, DE

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
86.99.59.253 AS5384 Emirates Internet 4.96ms from Al Fujairah City, AE
73.132.142.125 AS7922 Comcast Cable Communications, LLC 7.02ms from Ashburn, US
34.216.245.157 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
81.82.216.253 AS6848 Telenet BV 7.59ms from Brussels, BE
46.97.136.253 AS12302 Vodafone Romania S.A. 0.47ms from Bucharest, RO
69.31.56.141 AS3257 GTT Communications Inc. 0.31ms from Denver, US
68.61.21.237 AS7922 Comcast Cable Communications, LLC 11.59ms from Flint, US
179.54.208.141 AS26615 TIM S/A 10.78ms from Fortaleza, BR
177.130.222.253 AS28270 Alares_Internet 1.12ms from Fortaleza, BR
63.179.32.253 AS16509 Amazon.com, Inc. 0.15ms from Frankfurt am Main, DE
202.61.111.253 AS45753 Netsec Limited 1.66ms from Hong Kong, HK
211.192.33.61 AS4766 Korea Telecom 1.15ms from Incheon, KR
198.135.226.13 AS26159 UMB Bank, NA 5.39ms from Los Angeles, US
162.216.36.13 AS14091 Thrive Operations, LLC 4.71ms from Orlando, US
72.78.205.157 AS701 Verizon Business 1.91ms from Philadelphia, US
201.110.96.45 AS8151 UNINET 3.64ms from Santiago de Queretaro, MX
183.194.115.45 AS24400 Shanghai Mobile Communications Co.,Ltd. 2.97ms from Shanghai, CN
197.2.161.157 AS37705 TOPNET 1.45ms from Tunis, TN
77.166.75.189 AS1136 KPN B.V. 0.99ms from Amsterdam, NL
92.68.170.157 AS1136 KPN B.V. 2.22ms from Amsterdam, NL
116.142.159.125 AS4837 CHINA UNICOM China169 Backbone 3.19ms from Changchun, CN
174.111.249.173 AS11426 Charter Communications Inc 8.27ms from Charlotte, US
189.181.109.253 AS8151 UNINET 5.73ms from Guadalajara, MX
123.16.30.173 AS45899 VNPT Corp 1.37ms from Hanoi, VN
123.1.198.205 AS9269 Hong Kong Broadband Network Ltd. 0.91ms from Hong Kong, HK

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f3 -m7 151.244.252.233
traceroute to 151.244.252.233 (151.244.252.233): 7 hops max, 52 byte packets
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Seattle, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203997 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs