AS number details

AS139903

RETN Telecoms Ltd.  ·  retn.net

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AS139903 – RETN Telecoms Ltd.

Field Value
Country Taiwan
Website retn.net
Hosted domains 0
Number of IPv4 512
Number of IPv6 1,208,925,819,614,629,174,706,176
ASN type ISP
Registry apnic
Allocated 6 years ago on Dec 23, 2019
Updated 2 months ago on Aug 26, 2025
Netblock Company Num of IPs
103.146.250.0/23 RETN Telecoms Ltd. 512
Netblock Company
2001:df2:7580::/48 RETN Telecoms Ltd.
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IP Ranges API

WHOIS Details


                                                ASHandle:       AS139903
                                                OrgID:          AS139903
                                                ASName:         AS139903
                                                ASNumber:       AS139903
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are no domains currently hosted on this ASN.

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Useful for Cybersecurity

Peers

There are 3 peers for this ASN.

Peers Name
AS3462 Data Communication Business Group
AS57304 JSC "RetnNet"
AS9002 RETN Limited
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS9002 RETN Limited
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
103.146.251.254 AS139903 RETN Telecoms Ltd. 3.24ms from Taichung, TW

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Traceroute

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

$
traceroute -a -n -q1 -f4 103.146.251.9
traceroute to 103.146.251.9 (103.146.251.9): 64 hops max, 52 byte packets
4 [] 91.206.52.143 1.856 ms
5 [AS139903] 103.146.251.9 191.267 ms
Measurement taken from IPinfo ProbeNet in Solothurn, CH
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 AS139903 at robtex.

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