Summary

ASN	AS26 Cornell University
BGP	128.253.0.0/16
IPs with RDNS	134
Hosted Domains	0
Pingable IPs	121
Router IPs	28


128.253.222.0	—	0
128.253.222.1	—	0
128.253.222.2	—	0
128.253.222.3	—	0
128.253.222.4	—	0
128.253.222.5	—	0
128.253.222.6	dmz2-mx-ae0.net.cornell.edu	0
128.253.222.7	—	0
128.253.222.8	—	0
128.253.222.9	dmz1-mx-et-0-0-2.net.cornell.edu	0
128.253.222.10	wan1-mx-et-0-0-0.net.cornell.edu	0
128.253.222.11	—	0
128.253.222.12	—	0
128.253.222.13	dmz1-mx-et-0-0-6-vl11.net.cornell.edu	0
128.253.222.14	nyc1-mx-et-0-0-3-vl11.net.cornell.edu	0
128.253.222.15	—	0
128.253.222.16	—	0
128.253.222.17	dmz1-ex-et-0-0-7-vl17.net.cornell.edu	0
128.253.222.18	nyc1-mx-et-0-0-2-vl17.net.cornell.edu	0
128.253.222.19	—	0
128.253.222.20	—	0
128.253.222.21	core1-ex-et-1-1-5-vl19.net.cornell.edu	0
128.253.222.22	nyc1-ex-et-0-0-5-vl19.net.cornell.edu	0
128.253.222.23	—	0
128.253.222.24	test1-ex-et-0-0-54.net.cornell.edu	0
128.253.222.25	test-leaf1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.26	core1-ex-et-3-0-2.net.cornell.edu	0
128.253.222.27	research1-qfx-et-0-0-29.net.cornell.edu	0
128.253.222.28	—	0
128.253.222.29	—	0
128.253.222.30	—	0
128.253.222.31	—	0
128.253.222.32	—	0
128.253.222.33	core1-ex-et-2-2-2-vl16.net.cornell.edu	0
128.253.222.34	nyc2-ex-et-0-0-54-vl16.net.cornell.edu	0
128.253.222.35	—	0
128.253.222.36	testdmz1-mx-et-0-0-2.net.cornell.edu	0
128.253.222.37	test1-mx-et-7-0-2.net.cornell.edu	0
128.253.222.38	dmz1-mx-et-0-0-0.net.cornell.edu	0
128.253.222.39	core1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.40	nytech1-ex-xe-0-0-2.net.cornell.edu	0
128.253.222.41	nytech1-srx300-irb3902.net.cornell.edu	0
128.253.222.42	dmz1-mx-et-0-0-1.net.cornell.edu	0
128.253.222.43	core2-ex-et-0-0-2.net.cornell.edu	0
128.253.222.44	test3-ex-xe-0-1-7.net.cornell.edu	0
128.253.222.45	test5-ex-xe-2-3-7.net.cornell.edu	0
128.253.222.46	test1-ex-xe-0-0-39.net.cornell.edu	0
128.253.222.47	test5-ex-xe-2-0-0.net.cornell.edu	0
128.253.222.48	—	0
128.253.222.49	—	0
128.253.222.50	—	0
128.253.222.51	—	0
128.253.222.52	—	0
128.253.222.53	dmz1-mx-et-0-0-9.net.cornell.edu	0
128.253.222.54	wan3-mx-xe-2-0-0.net.cornell.edu	0
128.253.222.55	—	0
128.253.222.56	—	0
128.253.222.57	dmz1-mx-et-0-0-3.net.cornell.edu	0
128.253.222.58	wan2-mx-et-0-0-0.net.cornell.edu	0
128.253.222.59	—	0
128.253.222.60	—	0
128.253.222.61	nyc1-ex-et-0-0-0.net.cornell.edu	0
128.253.222.62	nytech1-ex-et-1-0-2.net.cornell.edu	0
128.253.222.63	—	0
128.253.222.64	—	0
128.253.222.65	core1-ex-et-1-0-0.net.cornell.edu	0
128.253.222.66	test1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.67	—	0
128.253.222.68	—	0
128.253.222.69	core1-ex-et-2-1-4.net.cornell.edu	0
128.253.222.70	vmc1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.71	—	0
128.253.222.72	—	0
128.253.222.73	core1-ex-et-0-0-5.net.cornell.edu	0
128.253.222.74	dist1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.75	—	0
128.253.222.76	—	0
128.253.222.77	core1-ex-et-1-0-5.net.cornell.edu	0
128.253.222.78	dist2-ex-et-0-0-2.net.cornell.edu	0
128.253.222.79	—	0
128.253.222.80	—	0
128.253.222.81	dist1-ex-xe-2-0-2.net.cornell.edu	0
128.253.222.82	dist1-srx-xe-0-0-0.net.cornell.edu	0
128.253.222.83	—	0
128.253.222.84	—	0
128.253.222.85	dist1-ex-xe-2-0-3.net.cornell.edu	0
128.253.222.86	dist1-srx-xe-0-0-2.net.cornell.edu	0
128.253.222.87	—	0
128.253.222.88	—	0
128.253.222.89	dist1-ex-xe-2-3-2.net.cornell.edu	0
128.253.222.90	dist2-srx-xe-0-0-0.net.cornell.edu	0
128.253.222.91	—	0
128.253.222.92	—	0
128.253.222.93	dist1-ex-xe-2-3-3.net.cornell.edu	0
128.253.222.94	dist2-srx-xe-0-0-2.net.cornell.edu	0
128.253.222.95	—	0
128.253.222.96	—	0
128.253.222.97	—	0
128.253.222.98	—	0
128.253.222.99	—	0
128.253.222.100	—	0
128.253.222.101	test1-ex-xe-2-3-2.net.cornell.edu	0
128.253.222.102	test1-srx-xe-0-0-0.net.cornell.edu	0
128.253.222.103	—	0
128.253.222.104	—	0
128.253.222.105	sf1-ex-ae0.net.cornell.edu	0
128.253.222.106	sf2-ex-ae0.net.cornell.edu	0
128.253.222.107	—	0
128.253.222.108	—	0
128.253.222.109	core1-ex-et-0-1-0.net.cornell.edu	0
128.253.222.110	sf1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.111	—	0
128.253.222.112	—	0
128.253.222.113	core1-ex-et-1-1-0.net.cornell.edu	0
128.253.222.114	sf2-ex-et-0-0-2.net.cornell.edu	0
128.253.222.115	—	0
128.253.222.116	—	0
128.253.222.117	test2-mx-xe-0-1-6.net.cornell.edu	0
128.253.222.118	test3-ex-xe-0-1-6.net.cornell.edu	0
128.253.222.119	—	0
128.253.222.120	—	0
128.253.222.121	—	0
128.253.222.122	—	0
128.253.222.123	—	0
128.253.222.124	—	0
128.253.222.125	—	0
128.253.222.126	—	0
128.253.222.127	—	0
128.253.222.128	—	0
128.253.222.129	nyc1-ex-xe-2-0-1.net.cornell.edu	0
128.253.222.130	—	0
128.253.222.131	—	0
128.253.222.132	—	0
128.253.222.133	core1-ex-et-2-0-0.net.cornell.edu	0
128.253.222.134	ccc1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.135	—	0
128.253.222.136	—	0
128.253.222.137	core1-ex-et-2-1-1.net.cornell.edu	0
128.253.222.138	clara1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.139	—	0
128.253.222.140	—	0
128.253.222.141	core1-ex-et-2-0-1.net.cornell.edu	0
128.253.222.142	gs1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.143	—	0
128.253.222.144	—	0
128.253.222.145	core1-ex-et-2-0-2.net.cornell.edu	0
128.253.222.146	hol1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.147	—	0
128.253.222.148	—	0
128.253.222.149	core1-ex-et-2-1-0.net.cornell.edu	0
128.253.222.150	humph1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.151	—	0
128.253.222.152	—	0
128.253.222.153	core1-ex-et-2-1-2.net.cornell.edu	0
128.253.222.154	mcfad1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.155	—	0
128.253.222.156	—	0
128.253.222.157	core1-ex-et-2-0-4.net.cornell.edu	0
128.253.222.158	morris1-ex-et-0-0-2.net.cornell.edu	0
128.253.222.159	—	0
128.253.222.160	—	0
128.253.222.161	core1-ex-et-2-1-3.net.cornell.edu	0
128.253.222.162	rhodes1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.163	—	0
128.253.222.164	—	0
128.253.222.165	dmz1-mx-et-0-0-13.net.cornell.edu	0
128.253.222.166	testdmz1-mx-et-0-0-0.net.cornell.edu	0
128.253.222.167	—	0
128.253.222.168	—	0
128.253.222.169	core1-ex-et-2-0-3.net.cornell.edu	0
128.253.222.170	uris1-ex-et-0-0-55.net.cornell.edu	0
128.253.222.171	—	0
128.253.222.172	test5-ex-et-0-1-5.net.cornell.edu	0
128.253.222.173	test1-qfx-et-0-0-29.net.cornell.edu	0
128.253.222.174	nytech1-ex9251-xe-0-1-6.net.cornell.edu	0
128.253.222.175	nytech1-ex4650-et-0-0-54.net.cornell.edu	0
128.253.222.176	—	0
128.253.222.177	core1-ex-et-2-2-1-vl7.net.cornell.edu	0
128.253.222.178	geneva1-ex-et-0-0-55-vl7.net.cornell.edu	0
128.253.222.179	—	0
128.253.222.180	—	0
128.253.222.181	—	0
128.253.222.182	—	0
128.253.222.183	—	0
128.253.222.184	—	0
128.253.222.185	core1-ex-et-2-2-1-vl5.net.cornell.edu	0
128.253.222.186	syr1-ex-xe-0-0-44.5.net.cornell.edu	0
128.253.222.187	—	0
128.253.222.188	—	0
128.253.222.189	nyc2-ex-et-0-0-55-v13.net.cornell.edu	0
128.253.222.190	nyc1-ex-et-0-1-5-vl13.net.cornell.edu	0
128.253.222.191	—	0
128.253.222.192	—	0
128.253.222.193	—	0
128.253.222.194	—	0
128.253.222.195	—	0
128.253.222.196	mcast1-rp.net.cornell.edu	0
128.253.222.197	reservered-loop.net.cornell.edu	0
128.253.222.198	dist1-srx-headend.net.cornell.edu	0
128.253.222.199	dist2-srx-headend.net.cornell.edu	0
128.253.222.200	dist1-srx.net.cornell.edu	0
128.253.222.201	dist2-srx.net.cornell.edu	0
128.253.222.202	test1-srx-headend.net.cornell.edu	0
128.253.222.203	test1-srx.net.cornell.edu	0
128.253.222.204	test1-ex.net.cornell.edu	0
128.253.222.205	testdmz1-mx.net.cornell.edu	0
128.253.222.206	—	0
128.253.222.207	test1-qfx.net.cornell.edu	0
128.253.222.208	test4-ex.net.cornell.edu	0
128.253.222.209	research1-qfx.net.cornell.edu	0
128.253.222.210	test1-mx.net.cornell.edu	0
128.253.222.211	vmc1-ex.net.cornell.edu	0
128.253.222.212	—	0
128.253.222.213	syr1-ex.net.cornell.edu	0
128.253.222.214	—	0
128.253.222.215	—	0
128.253.222.216	—	0
128.253.222.217	—	0
128.253.222.218	—	0
128.253.222.219	test2-mx.net.cornell.edu	0
128.253.222.220	test3-ex.net.cornell.edu	0
128.253.222.221	dmz1-mx.net.cornell.edu	0
128.253.222.222	dmz2-mx.net.cornell.edu	0
128.253.222.223	—	0
128.253.222.224	—	0
128.253.222.225	—	0
128.253.222.226	—	0
128.253.222.227	—	0
128.253.222.228	—	0
128.253.222.229	test5-ex.net.cornell.edu	0
128.253.222.230	nyc2-ex.net.cornell.edu	0
128.253.222.231	wan1-mx.net.cornell.edu	0
128.253.222.232	wan2-mx.net.cornell.edu	0
128.253.222.233	nyc1-mx.net.cornell.edu	0
128.253.222.234	wan3-mx.net.cornell.edu	0
128.253.222.235	—	0
128.253.222.236	core1-ex.net.cornell.edu	0
128.253.222.237	core2-ex.net.cornell.edu	0
128.253.222.238	nyc1-ex.net.cornell.edu	0
128.253.222.239	nytech1-ex.net.cornell.edu	0
128.253.222.240	morris1-ex.net.cornell.edu	0
128.253.222.241	ccc1-ex.net.cornell.edu	0
128.253.222.242	gs1-ex.net.cornell.edu	0
128.253.222.243	hol1-ex.net.cornell.edu	0
128.253.222.244	uris1-ex.net.cornell.edu	0
128.253.222.245	—	0
128.253.222.246	humph1-ex.net.cornell.edu	0
128.253.222.247	clara1-ex.net.cornell.edu	0
128.253.222.248	mcfad1-ex.net.cornell.edu	0
128.253.222.249	rhodes1-ex.net.cornell.edu	0
128.253.222.250	geneva1-ex.net.cornell.edu	0
128.253.222.251	dist1-ex.net.cornell.edu	0
128.253.222.252	dist2-ex.net.cornell.edu	0
128.253.222.253	sf1-ex.net.cornell.edu	0
128.253.222.254	sf2-ex.net.cornell.edu	0
128.253.222.255	—	0

Traceroute

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

traceroute -a -n -q1 -f5 128.253.222.196

traceroute to 128.253.222.196 (128.253.222.196): 64 hops max, 52 byte packets

5 [] 198.32.160.139 3.081 ms

6 *

7 *

8 [AS26] 128.253.222.196 7.353 ms

Measurement taken from

IPinfo ProbeNet in Piscataway, US

On January 9th 2026