WWW.ROBTEX.COM - px1b.sas.upenn.edu
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px1b.sas.upenn.edu checked at 2025-11-24T10:15:13.741Z 0ms 36/36/36 100% R:0 allDone:true timedOut:false px1b.sas.upenn.edu
| A | 128.91.234.80🇺🇸 ASN-UPENN | ||||||
| PTR | px1b.sas.upenn.edu | ||||||
sas.upenn.edu
| MX | mxa-00390e01.gslb.pphosted.com | ||||||
| MX | mxb-00390e01.gslb.pphosted.com | ||||||
| A | 128.91.79.164🇺🇸 ASN-UPENN | ||||||
| A | 165.123.125.242🇺🇸 ASN-UPENN | ||||||
| A | 165.123.242.19🇺🇸 ASN-UPENN | ||||||
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px1b.sas.upenn.edu points to a single IP number: 128.91.234.80.