IPLIST.NET - 193.136.128.21
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193.136.128.21 checked at 2025-09-16T03:10:14.239Z 424ms 14/14/14 100% R:9PTRs and A-records
| PTR | A | smtp1.tecnico.ulisboa.pt | |
| A | 2001:690:2100:1::15 | ||
| A | 193.136.128.21 | ||
| A | smtp1.ist.utl.pt | ||
| A | 2001:690:2100:1::15 | ||
| A | 193.136.128.21 |
IP numbers used in conjunction
RBLS
193.136.0.0/15
AS1930
dbq