AS21859 (ZEN-ECN - Zenlayer Inc) has at least 3 IP address(es) with domains observed in our passive DNS data. The IPs below are observed addresses with reverse-IP matches; they are a sample for investigation, not proof of whole-AS ownership or current hosting.
IP addresses observed in AS21859
| IP address | Reverse IP |
|---|---|
| 129.227.71.39 | domains on 129.227.71.39 |
| 129.227.71.47 | domains on 129.227.71.47 |
| 129.227.71.48 | domains on 129.227.71.48 |
3 observed IPs shown. Explore AS21859 on Profundis.io — history, exports and broader context →
Frequently asked questions
What is AS21859?
AS21859 (ZEN-ECN - Zenlayer Inc) is an Autonomous System — a block of IP addresses operated under a single routing policy. This page lists observed IPs in the AS that have passive DNS reverse-IP matches.
How do I find observed domains in AS21859?
Each IP address above links to a reverse-IP result page. For deeper history, exports, and broader AS investigation, use Profundis.io.
Last updated 2026-06-16.