Summary

ASN	AS40831 Mass General Brigham Incorporated
BGP	155.52.0.0/16
IPs with RDNS	108
Hosted Domains	0
Pingable IPs	0
Router IPs	0


155.52.34.0	—	0
155.52.34.1	dfci-gw-v634.partners.org	0
155.52.34.2	dcores1-g-v634.partners.org	0
155.52.34.3	dcores2-g-v634.partners.org	0
155.52.34.4	—	0
155.52.34.5	—	0
155.52.34.6	npi978592.dfci.harvard.edu	0
155.52.34.7	—	0
155.52.34.8	—	0
155.52.34.9	700957.dfci.harvard.edu	0
155.52.34.10	—	0
155.52.34.11	npi89e8b7-udp954471uds.dfci.harvard.edu	0
155.52.34.12	—	0
155.52.34.13	csc014685-0.dfci.harvard.edu	0
155.52.34.14	—	0
155.52.34.15	w0043622.dfci.harvard.edu	0
155.52.34.16	wsp009387wss.dfci.harvard.edu	0
155.52.34.17	—	0
155.52.34.18	—	0
155.52.34.19	w0043720.dfci.harvard.edu	0
155.52.34.20	dfcisec8.dfci.harvard.edu	0
155.52.34.21	75385-udp01201740uds.dfci.harvard.edu	0
155.52.34.22	canon3e9ae2.dfci.harvard.edu	0
155.52.34.23	npi887949.dfci.harvard.edu	0
155.52.34.24	—	0
155.52.34.25	npibf921a.dfci.harvard.edu	0
155.52.34.26	—	0
155.52.34.27	w0118330.dfci.harvard.edu	0
155.52.34.28	—	0
155.52.34.29	—	0
155.52.34.30	printerdfci001.dfci.harvard.edu	0
155.52.34.31	—	0
155.52.34.32	dfcipolycom1.dfci.harvard.edu	0
155.52.34.33	—	0
155.52.34.34	transcore.dfci.harvard.edu	0
155.52.34.35	—	0
155.52.34.36	—	0
155.52.34.37	—	0
155.52.34.38	—	0
155.52.34.39	—	0
155.52.34.40	78320.dfci.harvard.edu	0
155.52.34.41	—	0
155.52.34.42	—	0
155.52.34.43	w0041321.dfci.harvard.edu	0
155.52.34.44	w0040356.dfci.harvard.edu	0
155.52.34.45	—	0
155.52.34.46	—	0
155.52.34.47	w0049469.dfci.harvard.edu	0
155.52.34.48	—	0
155.52.34.49	—	0
155.52.34.50	mayer-3450.dfci.harvard.edu	0
155.52.34.51	—	0
155.52.34.52	mayer-531-laser.dfci.harvard.edu	0
155.52.34.53	mayer-449-laser.dfci.harvard.edu	0
155.52.34.54	75982.dfci.harvard.edu	0
155.52.34.55	—	0
155.52.34.56	amano-e009cc.dfci.harvard.edu	0
155.52.34.57	w0056998w.dfci.harvard.edu	0
155.52.34.58	—	0
155.52.34.59	jing-pc3.dfci.harvard.edu	0
155.52.34.60	w0040270.dfci.harvard.edu	0
155.52.34.61	w0040217.dfci.harvard.edu	0
155.52.34.62	w0041298.dfci.harvard.edu	0
155.52.34.63	canon0b92cb.dfci.harvard.edu	0
155.52.34.64	—	0
155.52.34.65	—	0
155.52.34.66	csc012314-0.dfci.harvard.edu	0
155.52.34.67	—	0
155.52.34.68	—	0
155.52.34.69	—	0
155.52.34.70	—	0
155.52.34.71	w0105725.dfci.harvard.edu	0
155.52.34.72	—	0
155.52.34.73	npicec6ec.dfci.harvard.edu	0
155.52.34.74	test-150834.dfci.harvard.edu	0
155.52.34.75	—	0
155.52.34.76	—	0
155.52.34.77	—	0
155.52.34.78	w0043662.dfci.harvard.edu	0
155.52.34.79	d530adell.dfci.harvard.edu	0
155.52.34.80	m441a-ppc-g3-udp142675uds.dfci.harvard.edu	0
155.52.34.81	hp400329.dfci.harvard.edu	0
155.52.34.82	—	0
155.52.34.83	npicec6ec-udp920183uds.dfci.harvard.edu	0
155.52.34.84	—	0
155.52.34.85	w0040912.dfci.harvard.edu	0
155.52.34.86	—	0
155.52.34.87	—	0
155.52.34.88	w0100692.dfci.harvard.edu	0
155.52.34.89	rattazzo.dfci.harvard.edu	0
155.52.34.90	—	0
155.52.34.91	w0043398.dfci.harvard.edu	0
155.52.34.92	w0119488.dfci.harvard.edu	0
155.52.34.93	w0105722.dfci.harvard.edu	0
155.52.34.94	udp606470uds.dfci.harvard.edu	0
155.52.34.95	w0041030.dfci.harvard.edu	0
155.52.34.96	—	0
155.52.34.97	—	0
155.52.34.98	w0048106.dfci.harvard.edu	0
155.52.34.99	78204.dfci.harvard.edu	0
155.52.34.100	p75950.dfci.harvard.edu	0
155.52.34.101	plasma-mayer1.dfci.harvard.edu	0
155.52.34.102	—	0
155.52.34.103	—	0
155.52.34.104	74233.dfci.harvard.edu	0
155.52.34.105	—	0
155.52.34.106	—	0
155.52.34.107	702282.dfci.harvard.edu	0
155.52.34.108	—	0
155.52.34.109	et0021b7286b53.partners.org	0
155.52.34.110	—	0
155.52.34.111	—	0
155.52.34.112	—	0
155.52.34.113	—	0
155.52.34.114	—	0
155.52.34.115	—	0
155.52.34.116	—	0
155.52.34.117	w0043844.dfci.harvard.edu	0
155.52.34.118	npiac0a56.dfci.harvard.edu	0
155.52.34.119	701023.partners.org	0
155.52.34.120	w0106942.dfci.harvard.edu	0
155.52.34.121	w0048030.dfci.harvard.edu	0
155.52.34.122	ok019.dfci.harvard.edu	0
155.52.34.123	g4-hmsf-2.dfci.harvard.edu	0
155.52.34.124	—	0
155.52.34.125	—	0
155.52.34.126	78325.dfci.harvard.edu	0
155.52.34.127	—	0
155.52.34.128	—	0
155.52.34.129	—	0
155.52.34.130	—	0
155.52.34.131	—	0
155.52.34.132	—	0
155.52.34.133	—	0
155.52.34.134	—	0
155.52.34.135	—	0
155.52.34.136	—	0
155.52.34.137	—	0
155.52.34.138	—	0
155.52.34.139	—	0
155.52.34.140	—	0
155.52.34.141	—	0
155.52.34.142	—	0
155.52.34.143	—	0
155.52.34.144	—	0
155.52.34.145	—	0
155.52.34.146	w0104795.dfci.harvard.edu	0
155.52.34.147	—	0
155.52.34.148	—	0
155.52.34.149	—	0
155.52.34.150	—	0
155.52.34.151	—	0
155.52.34.152	sungwoo.dfci.harvard.edu	0
155.52.34.153	—	0
155.52.34.154	—	0
155.52.34.155	—	0
155.52.34.156	d7l2yhb1.dfci.harvard.edu	0
155.52.34.157	—	0
155.52.34.158	dhcp-155-52-34-158.dfci.harvard.edu	0
155.52.34.159	—	0
155.52.34.160	flashalert-old.dfci.harvard.edu	0
155.52.34.161	—	0
155.52.34.162	—	0
155.52.34.163	m449dell.dfci.harvard.edu	0
155.52.34.164	—	0
155.52.34.165	74318.dfci.harvard.edu	0
155.52.34.166	—	0
155.52.34.167	—	0
155.52.34.168	—	0
155.52.34.169	—	0
155.52.34.170	w0103882.dfci.harvard.edu	0
155.52.34.171	—	0
155.52.34.172	764301.dfci.harvard.edu	0
155.52.34.173	dhcp-155-52-34-173.dfci.harvard.edu	0
155.52.34.174	—	0
155.52.34.175	—	0
155.52.34.176	tracy-pc.dfci.harvard.edu	0
155.52.34.177	—	0
155.52.34.178	—	0
155.52.34.179	—	0
155.52.34.180	w0048228.dfci.harvard.edu	0
155.52.34.181	—	0
155.52.34.182	—	0
155.52.34.183	w0041121.dfci.harvard.edu	0
155.52.34.184	74314.dfci.harvard.edu	0
155.52.34.185	—	0
155.52.34.186	—	0
155.52.34.187	—	0
155.52.34.188	—	0
155.52.34.189	—	0
155.52.34.190	w0043722.dfci.harvard.edu	0
155.52.34.191	—	0
155.52.34.192	—	0
155.52.34.193	npibca2ec.dfci.harvard.edu	0
155.52.34.194	—	0
155.52.34.195	dfcitimeclock1.dfci.harvard.edu	0
155.52.34.196	dfcitimeclock2.dfci.harvard.edu	0
155.52.34.197	p76443.dfci.harvard.edu	0
155.52.34.198	—	0
155.52.34.199	—	0
155.52.34.200	brunelle.dfci.harvard.edu	0
155.52.34.201	mayer460.dfci.harvard.edu	0
155.52.34.202	csc010562-0.dfci.harvard.edu	0
155.52.34.203	w0043377.dfci.harvard.edu	0
155.52.34.204	74682.dfci.harvard.edu	0
155.52.34.205	—	0
155.52.34.206	w0110913.dfci.harvard.edu	0
155.52.34.207	otp006626ots.dfci.harvard.edu	0
155.52.34.208	—	0
155.52.34.209	test-24046.dfci.harvard.edu	0
155.52.34.210	—	0
155.52.34.211	—	0
155.52.34.212	—	0
155.52.34.213	—	0
155.52.34.214	w0118800.dfci.harvard.edu	0
155.52.34.215	w0048217.dfci.harvard.edu	0
155.52.34.216	w0041025.dfci.harvard.edu	0
155.52.34.217	w0041032.dfci.harvard.edu	0
155.52.34.218	—	0
155.52.34.219	rnp00bb8c.dfci.harvard.edu	0
155.52.34.220	—	0
155.52.34.221	—	0
155.52.34.222	—	0
155.52.34.223	—	0
155.52.34.224	—	0
155.52.34.225	—	0
155.52.34.226	w0112742.dfci.harvard.edu	0
155.52.34.227	safire2beta.dfci.harvard.edu	0
155.52.34.228	james-155052034228.dfci.harvard.edu	0
155.52.34.229	—	0
155.52.34.230	—	0
155.52.34.231	—	0
155.52.34.232	w0041717.dfci.harvard.edu	0
155.52.34.233	npi73af70.dfci.harvard.edu	0
155.52.34.234	—	0
155.52.34.235	—	0
155.52.34.236	—	0
155.52.34.237	99latk5.dfci.harvard.edu	0
155.52.34.238	—	0
155.52.34.239	—	0
155.52.34.240	—	0
155.52.34.241	—	0
155.52.34.242	—	0
155.52.34.243	—	0
155.52.34.244	w0107552.dfci.harvard.edu	0
155.52.34.245	udp351522uds.dfci.harvard.edu	0
155.52.34.246	w0043842.dfci.harvard.edu	0
155.52.34.247	—	0
155.52.34.248	—	0
155.52.34.249	—	0
155.52.34.250	—	0
155.52.34.251	—	0
155.52.34.252	keywatch2.dfci.harvard.edu	0
155.52.34.253	—	0
155.52.34.254	—	0
155.52.34.255	—	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 -m8 155.52.34.80

traceroute to 155.52.34.80 (155.52.34.80): 8 hops max, 52 byte packets

4 [AS63949] 172.105.160.101 0.261 ms

5 [AS20940] 104.70.113.20 0.378 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On February 16th 2026