Summary

ASN	AS55 University of Pennsylvania
BGP	128.91.0.0/16
IPs with RDNS	78
Hosted Domains	0
Pingable IPs	20
Router IPs	0


128.91.62.0	—	0
128.91.62.1	—	0
128.91.62.2	—	0
128.91.62.3	—	0
128.91.62.4	—	0
128.91.62.5	—	0
128.91.62.6	—	0
128.91.62.7	—	0
128.91.62.8	—	0
128.91.62.9	—	0
128.91.62.10	—	0
128.91.62.11	—	0
128.91.62.12	—	0
128.91.62.13	—	0
128.91.62.14	—	0
128.91.62.15	—	0
128.91.62.16	—	0
128.91.62.17	fdp1-mgmt.dccs.upenn.edu	0
128.91.62.18	—	0
128.91.62.19	—	0
128.91.62.20	—	0
128.91.62.21	—	0
128.91.62.22	—	0
128.91.62.23	—	0
128.91.62.24	—	0
128.91.62.25	—	0
128.91.62.26	—	0
128.91.62.27	—	0
128.91.62.28	—	0
128.91.62.29	—	0
128.91.62.30	—	0
128.91.62.31	—	0
128.91.62.32	—	0
128.91.62.33	irb2.eis.router.upenn.edu	0
128.91.62.34	chs-fw5.admin.upenn.edu	0
128.91.62.35	eis-prs-p01-office-color-r.admin.upenn.edu	0
128.91.62.36	prs-eis-p02-ljoffice-color-hp.admin.upenn.edu	0
128.91.62.37	dea-admin-080.admin.upenn.edu	0
128.91.62.38	eis-07.admin.upenn.edu	0
128.91.62.39	eis20-0003-wd.admin.upenn.edu	0
128.91.62.40	prs22-0056-md.admin.upenn.edu	0
128.91.62.41	dea-admin-090.admin.upenn.edu	0
128.91.62.42	eis-10.admin.upenn.edu	0
128.91.62.43	prs22-0056-wd.admin.upenn.edu	0
128.91.62.44	eis-dhcp005.admin.upenn.edu	0
128.91.62.45	eis-dhcp006.admin.upenn.edu	0
128.91.62.46	eis-dhcp007.admin.upenn.edu	0
128.91.62.47	—	0
128.91.62.48	—	0
128.91.62.49	mla-pennnet-gw3.router.upenn.edu	0
128.91.62.50	retina.anatomy.upenn.edu	0
128.91.62.51	bip.anatomy.upenn.edu	0
128.91.62.52	—	0
128.91.62.53	—	0
128.91.62.54	—	0
128.91.62.55	—	0
128.91.62.56	—	0
128.91.62.57	—	0
128.91.62.58	—	0
128.91.62.59	—	0
128.91.62.60	—	0
128.91.62.61	—	0
128.91.62.62	—	0
128.91.62.63	—	0
128.91.62.64	—	0
128.91.62.65	vrrp4.gfl-chp.router.upenn.edu	0
128.91.62.66	c-cure-gfl-gw.dccs.upenn.edu	0
128.91.62.67	c-cure-chp-gw.dccs.upenn.edu	0
128.91.62.68	—	0
128.91.62.69	—	0
128.91.62.70	ehrsmon.publicsafety.upenn.edu	0
128.91.62.71	genvms.publicsafety.upenn.edu	0
128.91.62.72	—	0
128.91.62.73	pubterm.publicsafety.upenn.edu	0
128.91.62.74	—	0
128.91.62.75	—	0
128.91.62.76	wal-asa5505.publicsafety.upenn.edu	0
128.91.62.77	c-cure.publicsafety.upenn.edu	0
128.91.62.78	chp-asa5505.publicsafety.upenn.edu	0
128.91.62.79	—	0
128.91.62.80	—	0
128.91.62.81	wis-gw.dccs.upenn.edu	0
128.91.62.82	wis-modv-gw.dccs.upenn.edu	0
128.91.62.83	wis-vag-gw.dccs.upenn.edu	0
128.91.62.84	wis-fw.wistar.upenn.edu	0
128.91.62.85	wistar1-outside.wistar.upenn.edu	0
128.91.62.86	wistar2-outside.wistar.upenn.edu	0
128.91.62.87	wistar3-outside.wistar.upenn.edu	0
128.91.62.88	wistar4-outside.wistar.upenn.edu	0
128.91.62.89	wistar5-outside.wistar.upenn.edu	0
128.91.62.90	wistar6-outside.wistar.upenn.edu	0
128.91.62.91	wistar7-outside.wistar.upenn.edu	0
128.91.62.92	wistar8-outside.wistar.upenn.edu	0
128.91.62.93	—	0
128.91.62.94	—	0
128.91.62.95	—	0
128.91.62.96	—	0
128.91.62.97	xe3-1-3-3.modv.router.upenn.edu	0
128.91.62.98	delta-kappa-epsilon-00.tns.greeknet.group.upenn.edu	0
128.91.62.99	delta-kappa-epsilon-01.tns.greeknet.group.upenn.edu	0
128.91.62.100	delta-kappa-epsilon-02.tns.greeknet.group.upenn.edu	0
128.91.62.101	delta-kappa-epsilon-03.tns.greeknet.group.upenn.edu	0
128.91.62.102	delta-kappa-epsilon-04.tns.greeknet.group.upenn.edu	0
128.91.62.103	delta-kappa-epsilon-05.tns.greeknet.group.upenn.edu	0
128.91.62.104	delta-kappa-epsilon-06.tns.greeknet.group.upenn.edu	0
128.91.62.105	delta-kappa-epsilon-07.tns.greeknet.group.upenn.edu	0
128.91.62.106	delta-kappa-epsilon-08.tns.greeknet.group.upenn.edu	0
128.91.62.107	delta-kappa-epsilon-09.tns.greeknet.group.upenn.edu	0
128.91.62.108	delta-kappa-epsilon-10.tns.greeknet.group.upenn.edu	0
128.91.62.109	delta-kappa-epsilon-11.tns.greeknet.group.upenn.edu	0
128.91.62.110	delta-kappa-epsilon-12.tns.greeknet.group.upenn.edu	0
128.91.62.111	delta-kappa-epsilon-13.tns.greeknet.group.upenn.edu	0
128.91.62.112	delta-kappa-epsilon-14.tns.greeknet.group.upenn.edu	0
128.91.62.113	delta-kappa-epsilon-15.tns.greeknet.group.upenn.edu	0
128.91.62.114	delta-kappa-epsilon-16.tns.greeknet.group.upenn.edu	0
128.91.62.115	delta-kappa-epsilon-17.tns.greeknet.group.upenn.edu	0
128.91.62.116	delta-kappa-epsilon-18.tns.greeknet.group.upenn.edu	0
128.91.62.117	delta-kappa-epsilon-19.tns.greeknet.group.upenn.edu	0
128.91.62.118	delta-kappa-epsilon-20.tns.greeknet.group.upenn.edu	0
128.91.62.119	delta-kappa-epsilon-21.tns.greeknet.group.upenn.edu	0
128.91.62.120	delta-kappa-epsilon-22.tns.greeknet.group.upenn.edu	0
128.91.62.121	delta-kappa-epsilon-23.tns.greeknet.group.upenn.edu	0
128.91.62.122	delta-kappa-epsilon-24.tns.greeknet.group.upenn.edu	0
128.91.62.123	delta-kappa-epsilon-25.tns.greeknet.group.upenn.edu	0
128.91.62.124	delta-kappa-epsilon-26.tns.greeknet.group.upenn.edu	0
128.91.62.125	delta-kappa-epsilon-27.tns.greeknet.group.upenn.edu	0
128.91.62.126	delta-kappa-epsilon-28.tns.greeknet.group.upenn.edu	0
128.91.62.127	—	0
128.91.62.128	—	0
128.91.62.129	fba-sas-nonfw-gw.dccs.upenn.edu	0
128.91.62.130	tblocatedinfba114.sas.upenn.edu	0
128.91.62.131	—	0
128.91.62.132	—	0
128.91.62.133	—	0
128.91.62.134	—	0
128.91.62.135	—	0
128.91.62.136	fbafwtest.sas.upenn.edu	0
128.91.62.137	kimtransfer.sas.upenn.edu	0
128.91.62.138	kimtransfer-2fa.sas.upenn.edu	0
128.91.62.139	—	0
128.91.62.140	—	0
128.91.62.141	—	0
128.91.62.142	—	0
128.91.62.143	—	0
128.91.62.144	—	0
128.91.62.145	—	0
128.91.62.146	—	0
128.91.62.147	—	0
128.91.62.148	—	0
128.91.62.149	—	0
128.91.62.150	—	0
128.91.62.151	—	0
128.91.62.152	—	0
128.91.62.153	—	0
128.91.62.154	—	0
128.91.62.155	—	0
128.91.62.156	—	0
128.91.62.157	—	0
128.91.62.158	—	0
128.91.62.159	—	0
128.91.62.160	—	0
128.91.62.161	—	0
128.91.62.162	—	0
128.91.62.163	—	0
128.91.62.164	—	0
128.91.62.165	—	0
128.91.62.166	—	0
128.91.62.167	—	0
128.91.62.168	—	0
128.91.62.169	—	0
128.91.62.170	—	0
128.91.62.171	—	0
128.91.62.172	—	0
128.91.62.173	—	0
128.91.62.174	—	0
128.91.62.175	—	0
128.91.62.176	—	0
128.91.62.177	—	0
128.91.62.178	—	0
128.91.62.179	—	0
128.91.62.180	—	0
128.91.62.181	—	0
128.91.62.182	—	0
128.91.62.183	—	0
128.91.62.184	—	0
128.91.62.185	—	0
128.91.62.186	—	0
128.91.62.187	—	0
128.91.62.188	—	0
128.91.62.189	—	0
128.91.62.190	—	0
128.91.62.191	—	0
128.91.62.192	—	0
128.91.62.193	irb4.drl.router.upenn.edu	0
128.91.62.194	—	0
128.91.62.195	—	0
128.91.62.196	—	0
128.91.62.197	—	0
128.91.62.198	—	0
128.91.62.199	—	0
128.91.62.200	fres-128-091-062-200.fres.upenn.edu	0
128.91.62.201	fres-128-091-062-201.fres.upenn.edu	0
128.91.62.202	—	0
128.91.62.203	—	0
128.91.62.204	—	0
128.91.62.205	—	0
128.91.62.206	—	0
128.91.62.207	—	0
128.91.62.208	—	0
128.91.62.209	—	0
128.91.62.210	—	0
128.91.62.211	—	0
128.91.62.212	psx-lot26.business-services.upenn.edu	0
128.91.62.213	—	0
128.91.62.214	—	0
128.91.62.215	—	0
128.91.62.216	—	0
128.91.62.217	—	0
128.91.62.218	—	0
128.91.62.219	—	0
128.91.62.220	—	0
128.91.62.221	—	0
128.91.62.222	—	0
128.91.62.223	—	0
128.91.62.224	—	0
128.91.62.225	—	0
128.91.62.226	—	0
128.91.62.227	—	0
128.91.62.228	—	0
128.91.62.229	—	0
128.91.62.230	—	0
128.91.62.231	—	0
128.91.62.232	—	0
128.91.62.233	—	0
128.91.62.234	—	0
128.91.62.235	—	0
128.91.62.236	—	0
128.91.62.237	—	0
128.91.62.238	—	0
128.91.62.239	—	0
128.91.62.240	—	0
128.91.62.241	—	0
128.91.62.242	—	0
128.91.62.243	—	0
128.91.62.244	—	0
128.91.62.245	—	0
128.91.62.246	—	0
128.91.62.247	—	0
128.91.62.248	—	0
128.91.62.249	—	0
128.91.62.250	—	0
128.91.62.251	—	0
128.91.62.252	—	0
128.91.62.253	—	0
128.91.62.254	—	0
128.91.62.255	—	0

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 128.91.62.81

traceroute to 128.91.62.81 (128.91.62.81): 64 hops max, 52 byte packets

4 [AS3356] 4.30.44.2 107.454 ms

5 [AS55] 128.91.48.42 108.099 ms

6 [AS55] 128.91.62.81 112.165 ms

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On December 28th 2025