Summary

ASN	AS2 University of Delaware
BGP	128.4.0.0/16
IPs with RDNS	245
Hosted Domains	0
Pingable IPs	0
Router IPs	0


128.4.5.0	—	0
128.4.5.1	sw-ne67-5-3-irb-467.nis.udel.edu	0
128.4.5.2	host-128-4-5-2.host.udel.edu	0
128.4.5.3	host-128-4-5-3.host.udel.edu	0
128.4.5.4	host-128-4-5-4.host.udel.edu	0
128.4.5.5	host-128-4-5-5.host.udel.edu	0
128.4.5.6	host-128-4-5-6.host.udel.edu	0
128.4.5.7	host-128-4-5-7.host.udel.edu	0
128.4.5.8	host-128-4-5-8.host.udel.edu	0
128.4.5.9	host-128-4-5-9.host.udel.edu	0
128.4.5.10	host-128-4-5-10.host.udel.edu	0
128.4.5.11	host-128-4-5-11.host.udel.edu	0
128.4.5.12	host-128-4-5-12.host.udel.edu	0
128.4.5.13	host-128-4-5-13.host.udel.edu	0
128.4.5.14	host-128-4-5-14.host.udel.edu	0
128.4.5.15	host-128-4-5-15.host.udel.edu	0
128.4.5.16	host-128-4-5-16.host.udel.edu	0
128.4.5.17	host-128-4-5-17.host.udel.edu	0
128.4.5.18	host-128-4-5-18.host.udel.edu	0
128.4.5.19	host-128-4-5-19.host.udel.edu	0
128.4.5.20	host-128-4-5-20.host.udel.edu	0
128.4.5.21	host-128-4-5-21.host.udel.edu	0
128.4.5.22	host-128-4-5-22.host.udel.edu	0
128.4.5.23	host-128-4-5-23.host.udel.edu	0
128.4.5.24	host-128-4-5-24.host.udel.edu	0
128.4.5.25	host-128-4-5-25.host.udel.edu	0
128.4.5.26	host-128-4-5-26.host.udel.edu	0
128.4.5.27	host-128-4-5-27.host.udel.edu	0
128.4.5.28	host-128-4-5-28.host.udel.edu	0
128.4.5.29	host-128-4-5-29.host.udel.edu	0
128.4.5.30	host-128-4-5-30.host.udel.edu	0
128.4.5.31	—	0
128.4.5.32	—	0
128.4.5.33	sw-ne67-5-3-irb-468.nis.udel.edu	0
128.4.5.34	host-128-4-5-34.host.udel.edu	0
128.4.5.35	host-128-4-5-35.host.udel.edu	0
128.4.5.36	host-128-4-5-36.host.udel.edu	0
128.4.5.37	host-128-4-5-37.host.udel.edu	0
128.4.5.38	host-128-4-5-38.host.udel.edu	0
128.4.5.39	host-128-4-5-39.host.udel.edu	0
128.4.5.40	host-128-4-5-40.host.udel.edu	0
128.4.5.41	host-128-4-5-41.host.udel.edu	0
128.4.5.42	host-128-4-5-42.host.udel.edu	0
128.4.5.43	host-128-4-5-43.host.udel.edu	0
128.4.5.44	host-128-4-5-44.host.udel.edu	0
128.4.5.45	host-128-4-5-45.host.udel.edu	0
128.4.5.46	host-128-4-5-46.host.udel.edu	0
128.4.5.47	host-128-4-5-47.host.udel.edu	0
128.4.5.48	host-128-4-5-48.host.udel.edu	0
128.4.5.49	host-128-4-5-49.host.udel.edu	0
128.4.5.50	host-128-4-5-50.host.udel.edu	0
128.4.5.51	host-128-4-5-51.host.udel.edu	0
128.4.5.52	host-128-4-5-52.host.udel.edu	0
128.4.5.53	host-128-4-5-53.host.udel.edu	0
128.4.5.54	host-128-4-5-54.host.udel.edu	0
128.4.5.55	host-128-4-5-55.host.udel.edu	0
128.4.5.56	host-128-4-5-56.host.udel.edu	0
128.4.5.57	host-128-4-5-57.host.udel.edu	0
128.4.5.58	host-128-4-5-58.host.udel.edu	0
128.4.5.59	host-128-4-5-59.host.udel.edu	0
128.4.5.60	host-128-4-5-60.host.udel.edu	0
128.4.5.61	host-128-4-5-61.host.udel.edu	0
128.4.5.62	host-128-4-5-62.host.udel.edu	0
128.4.5.63	—	0
128.4.5.64	—	0
128.4.5.65	sw-wz06-aq21-4-irb-470.nis.udel.edu	0
128.4.5.66	host-128-4-5-66.host.udel.edu	0
128.4.5.67	host-128-4-5-67.host.udel.edu	0
128.4.5.68	host-128-4-5-68.host.udel.edu	0
128.4.5.69	host-128-4-5-69.host.udel.edu	0
128.4.5.70	host-128-4-5-70.host.udel.edu	0
128.4.5.71	host-128-4-5-71.host.udel.edu	0
128.4.5.72	host-128-4-5-72.host.udel.edu	0
128.4.5.73	host-128-4-5-73.host.udel.edu	0
128.4.5.74	host-128-4-5-74.host.udel.edu	0
128.4.5.75	host-128-4-5-75.host.udel.edu	0
128.4.5.76	host-128-4-5-76.host.udel.edu	0
128.4.5.77	host-128-4-5-77.host.udel.edu	0
128.4.5.78	host-128-4-5-78.host.udel.edu	0
128.4.5.79	host-128-4-5-79.host.udel.edu	0
128.4.5.80	host-128-4-5-80.host.udel.edu	0
128.4.5.81	host-128-4-5-81.host.udel.edu	0
128.4.5.82	host-128-4-5-82.host.udel.edu	0
128.4.5.83	host-128-4-5-83.host.udel.edu	0
128.4.5.84	host-128-4-5-84.host.udel.edu	0
128.4.5.85	host-128-4-5-85.host.udel.edu	0
128.4.5.86	host-128-4-5-86.host.udel.edu	0
128.4.5.87	host-128-4-5-87.host.udel.edu	0
128.4.5.88	host-128-4-5-88.host.udel.edu	0
128.4.5.89	host-128-4-5-89.host.udel.edu	0
128.4.5.90	host-128-4-5-90.host.udel.edu	0
128.4.5.91	host-128-4-5-91.host.udel.edu	0
128.4.5.92	host-128-4-5-92.host.udel.edu	0
128.4.5.93	host-128-4-5-93.host.udel.edu	0
128.4.5.94	host-128-4-5-94.host.udel.edu	0
128.4.5.95	—	0
128.4.5.96	host-128-4-5-96.host.udel.edu	0
128.4.5.97	sw-ne67-5-3-irb-469.nis.udel.edu	0
128.4.5.98	host-128-4-5-98.host.udel.edu	0
128.4.5.99	host-128-4-5-99.host.udel.edu	0
128.4.5.100	host-128-4-5-100.host.udel.edu	0
128.4.5.101	host-128-4-5-101.host.udel.edu	0
128.4.5.102	host-128-4-5-102.host.udel.edu	0
128.4.5.103	host-128-4-5-103.host.udel.edu	0
128.4.5.104	host-128-4-5-104.host.udel.edu	0
128.4.5.105	host-128-4-5-105.host.udel.edu	0
128.4.5.106	host-128-4-5-106.host.udel.edu	0
128.4.5.107	host-128-4-5-107.host.udel.edu	0
128.4.5.108	host-128-4-5-108.host.udel.edu	0
128.4.5.109	host-128-4-5-109.host.udel.edu	0
128.4.5.110	host-128-4-5-110.host.udel.edu	0
128.4.5.111	host-128-4-5-111.host.udel.edu	0
128.4.5.112	host-128-4-5-112.host.udel.edu	0
128.4.5.113	host-128-4-5-113.host.udel.edu	0
128.4.5.114	host-128-4-5-114.host.udel.edu	0
128.4.5.115	host-128-4-5-115.host.udel.edu	0
128.4.5.116	host-128-4-5-116.host.udel.edu	0
128.4.5.117	host-128-4-5-117.host.udel.edu	0
128.4.5.118	host-128-4-5-118.host.udel.edu	0
128.4.5.119	host-128-4-5-119.host.udel.edu	0
128.4.5.120	host-128-4-5-120.host.udel.edu	0
128.4.5.121	host-128-4-5-121.host.udel.edu	0
128.4.5.122	host-128-4-5-122.host.udel.edu	0
128.4.5.123	host-128-4-5-123.host.udel.edu	0
128.4.5.124	host-128-4-5-124.host.udel.edu	0
128.4.5.125	host-128-4-5-125.host.udel.edu	0
128.4.5.126	host-128-4-5-126.host.udel.edu	0
128.4.5.127	host-128-4-5-127.host.udel.edu	0
128.4.5.128	host-128-4-5-128.host.udel.edu	0
128.4.5.129	sw-ne67-5-3-irb-473.nis.udel.edu	0
128.4.5.130	host-128-4-5-130.host.udel.edu	0
128.4.5.131	host-128-4-5-131.host.udel.edu	0
128.4.5.132	host-128-4-5-132.host.udel.edu	0
128.4.5.133	host-128-4-5-133.host.udel.edu	0
128.4.5.134	host-128-4-5-134.host.udel.edu	0
128.4.5.135	host-128-4-5-135.host.udel.edu	0
128.4.5.136	host-128-4-5-136.host.udel.edu	0
128.4.5.137	host-128-4-5-137.host.udel.edu	0
128.4.5.138	host-128-4-5-138.host.udel.edu	0
128.4.5.139	host-128-4-5-139.host.udel.edu	0
128.4.5.140	host-128-4-5-140.host.udel.edu	0
128.4.5.141	host-128-4-5-141.host.udel.edu	0
128.4.5.142	host-128-4-5-142.host.udel.edu	0
128.4.5.143	host-128-4-5-143.host.udel.edu	0
128.4.5.144	host-128-4-5-144.host.udel.edu	0
128.4.5.145	host-128-4-5-145.host.udel.edu	0
128.4.5.146	host-128-4-5-146.host.udel.edu	0
128.4.5.147	host-128-4-5-147.host.udel.edu	0
128.4.5.148	host-128-4-5-148.host.udel.edu	0
128.4.5.149	host-128-4-5-149.host.udel.edu	0
128.4.5.150	host-128-4-5-150.host.udel.edu	0
128.4.5.151	host-128-4-5-151.host.udel.edu	0
128.4.5.152	host-128-4-5-152.host.udel.edu	0
128.4.5.153	host-128-4-5-153.host.udel.edu	0
128.4.5.154	host-128-4-5-154.host.udel.edu	0
128.4.5.155	host-128-4-5-155.host.udel.edu	0
128.4.5.156	host-128-4-5-156.host.udel.edu	0
128.4.5.157	host-128-4-5-157.host.udel.edu	0
128.4.5.158	host-128-4-5-158.host.udel.edu	0
128.4.5.159	—	0
128.4.5.160	—	0
128.4.5.161	chp-core2-irb-476.nis.udel.edu	0
128.4.5.162	login00.elc.hpc.udel.edu	0
128.4.5.163	login01.elc.hpc.udel.edu	0
128.4.5.164	login01.caviness.hpc.udel.edu	0
128.4.5.165	login00.caviness.hpc.udel.edu	0
128.4.5.166	mgmt02.caviness.hpc.udel.edu	0
128.4.5.167	mgmt01.caviness.hpc.udel.edu	0
128.4.5.168	mgmt00.caviness.hpc.udel.edu	0
128.4.5.169	vm0.caviness.hpc.udel.edu	0
128.4.5.170	host-128-4-5-170.host.udel.edu	0
128.4.5.171	host-128-4-5-171.host.udel.edu	0
128.4.5.172	host-128-4-5-172.host.udel.edu	0
128.4.5.173	host-4-5-173.host.udel.edu	0
128.4.5.174	host-4-5-174.host.udel.edu	0
128.4.5.175	host-4-5-175.host.udel.edu	0
128.4.5.176	host-4-5-176.host.udel.edu	0
128.4.5.177	host-128-4-5-177.host.udel.edu	0
128.4.5.178	host-128-4-5-178.host.udel.edu	0
128.4.5.179	host-128-4-5-179.host.udel.edu	0
128.4.5.180	host-128-4-5-180.host.udel.edu	0
128.4.5.181	host-128-4-5-181.host.udel.edu	0
128.4.5.182	host-128-4-5-182.host.udel.edu	0
128.4.5.183	host-128-4-5-183.host.udel.edu	0
128.4.5.184	host-128-4-5-184.host.udel.edu	0
128.4.5.185	host-128-4-5-185.host.udel.edu	0
128.4.5.186	host-128-4-5-186.host.udel.edu	0
128.4.5.187	mills.hpc.udel.edu	0
128.4.5.188	dataverse-test.elc.hpc.udel.edu	0
128.4.5.189	sw-dist-10g.elc.hpc.udel.edu	0
128.4.5.190	spasm.elc.hpc.udel.edu	0
128.4.5.191	—	0
128.4.5.192	—	0
128.4.5.193	sw-ne37-110-11-irb-471.nis.udel.edu	0
128.4.5.194	host-128-4-5-194.host.udel.edu	0
128.4.5.195	host-128-4-5-195.host.udel.edu	0
128.4.5.196	host-128-4-5-196.host.udel.edu	0
128.4.5.197	host-128-4-5-197.host.udel.edu	0
128.4.5.198	host-128-4-5-198.host.udel.edu	0
128.4.5.199	host-128-4-5-199.host.udel.edu	0
128.4.5.200	engr-wp-forms.engr.udel.edu	0
128.4.5.201	engr-ecalc-rdp.win.udel.edu	0
128.4.5.202	engr-bitc.engr.udel.edu	0
128.4.5.203	engr-innovation.engr.udel.edu	0
128.4.5.204	host-4-5-204.host.udel.edu	0
128.4.5.205	engr-outreach.engr.udel.edu	0
128.4.5.206	engr-news.engr.udel.edu	0
128.4.5.207	courses.me.udel.edu	0
128.4.5.208	host-4-5-208.host.udel.edu	0
128.4.5.209	engr-wp-125ece.engr.udel.edu	0
128.4.5.210	engr-wp-railroad.engr.udel.edu	0
128.4.5.211	engr-wp-industry.engr.udel.edu	0
128.4.5.212	engr-scanner-x.win.udel.edu	0
128.4.5.213	engr-wp-machineshop.engr.udel.edu	0
128.4.5.214	engr-wwd-engr.win.udel.edu	0
128.4.5.215	engr-www-assetchecker.win.udel.edu	0
128.4.5.216	engr-resources.engr.udel.edu	0
128.4.5.217	engr-wwp-ecalc.engr.udel.edu	0
128.4.5.218	engr-chp-provpn.engr.udel.edu	0
128.4.5.219	host-128-4-5-219.host.udel.edu	0
128.4.5.220	nwp.engr.udel.edu	0
128.4.5.221	host-128-4-5-221.host.udel.edu	0
128.4.5.222	host-128-4-5-222.host.udel.edu	0
128.4.5.223	host-4-5-223.host.udel.edu	0
128.4.5.224	che.udel.edu	0
128.4.5.225	host-128-4-5-225.host.udel.edu	0
128.4.5.226	cis.udel.edu	0
128.4.5.227	host-128-4-5-227.host.udel.edu	0
128.4.5.228	ece.udel.edu	0
128.4.5.229	ee.udel.edu	0
128.4.5.230	host-128-4-5-230.host.udel.edu	0
128.4.5.231	host-128-4-5-231.host.udel.edu	0
128.4.5.232	host-128-4-5-232.host.udel.edu	0
128.4.5.233	engr-wwp-doty.engr.udel.edu	0
128.4.5.234	host-128-4-5-234.host.udel.edu	0
128.4.5.235	host-128-4-5-235.host.udel.edu	0
128.4.5.236	host-128-4-5-236.host.udel.edu	0
128.4.5.237	engr-wp-covidct.engr.udel.edu	0
128.4.5.238	udcovidmodeldashboard.che.udel.edu	0
128.4.5.239	engr-makergym.win.udel.edu	0
128.4.5.240	research.engr.udel.edu	0
128.4.5.241	host-128-4-5-241.host.udel.edu	0
128.4.5.242	engr-wwp-ccei.engr.udel.edu	0
128.4.5.243	host-128-4-5-243.host.udel.edu	0
128.4.5.244	host-128-4-5-244.host.udel.edu	0
128.4.5.245	host-4-5-245.host.udel.edu	0
128.4.5.246	host-128-4-5-246.host.udel.edu	0
128.4.5.247	host-4-5-247.host.udel.edu	0
128.4.5.248	host-4-5-248.host.udel.edu	0
128.4.5.249	host-4-5-249.host.udel.edu	0
128.4.5.250	host-4-5-250.host.udel.edu	0
128.4.5.251	host-4-5-251.host.udel.edu	0
128.4.5.252	host-128-4-5-252.host.udel.edu	0
128.4.5.253	host-128-4-5-253.host.udel.edu	0
128.4.5.254	host-128-4-5-254.host.udel.edu	0
128.4.5.255	—	0

Traceroute

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

traceroute -a -n -q1 -m5 128.4.5.187

traceroute to 128.4.5.187 (128.4.5.187): 5 hops max, 52 byte packets

1 [AS263812] 38.165.233.1 0.067 ms

2 [AS52468] 181.78.95.209 0.717 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Asuncion, PY

On November 22nd 2025