130.91.210.138 — Philadelphia, Pennsylvania, 🇺🇸 USA · AS55 ASN-UPENN

PTR

iscmrtutprl18.isc.upenn.edu

A record for

`smtp-relay.upenn.edu`
	A	2607:f470:1004:1::11
	A	2607:f470:1004:1::12
	A	130.91.210.136
	A	130.91.210.138
`iscmrtutprl18.isc.upenn.edu`
	A	2607:f470:1004:1::11
	A	130.91.210.138

IP numbers used in conjunction

100%	2607:f470:1004:1::11
50%	2607:f470:1004:1::12
50%	130.91.210.136

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Philadelphia, Pennsylvania, 🇺🇸 USA

^{🇺🇸 ASN-UPENN130.91.0.0/16 PennNet}

130.91.210.138 Philadelphia, Pennsylvania, 🇺🇸 USA Courtesy of