AS139903
RETN Telecoms Ltd.
AS139903 is RETN Telecoms Ltd. (retn.net). It announces 512 IPv4 addresses in 1 prefixes, and 1 IPv6 prefixes.
Taiwan· APNIC· allocated 2019-12-23· isp
512
IPv4 addresses announced
1
IPv4 prefixes
1
IPv6 prefixes
100.00%
of its routes RPKI-valid
512
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Taiwan512 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- RETN-AS-AP
- name
- RETN Telecoms Ltd.
- org
- ORG-RTL4-AP
- org name
- RETN Telecoms Ltd.
- org address
- 9F-5, No. 70 Yanping S. Road, Zhongzheng District
- org country
- TW
- country
- TW
- source
- apnic
- updated
- 2025-08-26
- descr
- RETN Telecoms Ltd.
- maintainer
- APNIC-HM
- maintainer email
- helpdesk@apnic.net
- abuse
- AR887-AP
- abuse name
- ABUSE RETNTW
- abuse email
- abuse@retn.net
- abuse kind
- role
- admin
- RTLA4-AP
- admin name
- RETN Telecoms Ltd administrator
- admin email
- abuse@retn.net
- admin phone
- +886 2 2511 0013
- admin kind
- role
- admin country
- TW
- tech
- RTLA4-AP
- tech name
- RETN Telecoms Ltd administrator
- tech email
- abuse@retn.net
- tech phone
- +886 2 2511 0013
- tech kind
- role
- tech country
- TW
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 103.146.250.0/23 | Taiwan | valid | 16 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:df2:7580::/48 | Taiwan | valid | 19 | 2026-10-02 |
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.