Summary

ASN	AS1221 Telstra Limited
BGP	203.27.128.0/18
IPs with RDNS	120
Hosted Domains	0
Pingable IPs	86
Router IPs	8


203.27.187.0	—	0
203.27.187.1	bundle-ether1112-152.chw-edge903.sydney.telstra.net	0
203.27.187.2	doe3019622.lnk.telstra.net	0
203.27.187.3	—	0
203.27.187.4	—	0
203.27.187.5	bundle-ether1051-316.woo-edge901.brisbane.telstra.net	0
203.27.187.6	nik2300411.lnk.telstra.net	0
203.27.187.7	—	0
203.27.187.8	—	0
203.27.187.9	bundle-ether1081-237.chw-edge903.sydney.telstra.net	0
203.27.187.10	saf3886766.lnk.telstra.net	0
203.27.187.11	—	0
203.27.187.12	—	0
203.27.187.13	bundle-ether1053-110.lon-edge901.melbourne.telstra.net	0
203.27.187.14	aea2378517.lnk.telstra.net	0
203.27.187.15	—	0
203.27.187.16	—	0
203.27.187.17	bundle-ether1051-475.wel-edge902.perth.telstra.net	0
203.27.187.18	pmf2337578.lnk.telstra.net	0
203.27.187.19	—	0
203.27.187.20	—	0
203.27.187.21	ae7-16347.wqbe-e-072.brisbane.telstra.net	0
203.27.187.22	gul4027200.lnk.telstra.net	0
203.27.187.23	—	0
203.27.187.24	—	0
203.27.187.25	bundle-ether1054-271.cha-edge901.brisbane.telstra.net	0
203.27.187.26	dat3858770.lnk.telstra.net	0
203.27.187.27	—	0
203.27.187.28	—	0
203.27.187.29	bundle-ether1053-457.win-edge901.melbourne.telstra.net	0
203.27.187.30	cmy2378308.lnk.telstra.net	0
203.27.187.31	—	0
203.27.187.32	—	0
203.27.187.33	bundle-ether1111-316.chw-edge903.sydney.telstra.net	0
203.27.187.34	com4173165.lnk.telstra.net	0
203.27.187.35	—	0
203.27.187.36	—	0
203.27.187.37	—	0
203.27.187.38	—	0
203.27.187.39	—	0
203.27.187.40	—	0
203.27.187.41	bundle-ether1053-456.win-edge901.melbourne.telstra.net	0
203.27.187.42	sax2379769.lnk.telstra.net	0
203.27.187.43	—	0
203.27.187.44	—	0
203.27.187.45	bundle-ether1051-355.win-edge901.melbourne.telstra.net	0
203.27.187.46	bos2378551.lnk.telstra.net	0
203.27.187.47	—	0
203.27.187.48	—	0
203.27.187.49	bundle-ether1082-334.ken-edge903.sydney.telstra.net	0
203.27.187.50	fib4452890.lnk.telstra.net	0
203.27.187.51	—	0
203.27.187.52	—	0
203.27.187.53	bundle-ether1081-603.cha-edge903.brisbane.telstra.net	0
203.27.187.54	cat3565097.lnk.telstra.net	0
203.27.187.55	—	0
203.27.187.56	—	0
203.27.187.57	bundle-ether1051-156.way-edge901.adelaide.telstra.net	0
203.27.187.58	air2379995.lnk.telstra.net	0
203.27.187.59	—	0
203.27.187.60	—	0
203.27.187.61	bundle-ether1111-1117.chw-edge903.sydney.telstra.net	0
203.27.187.62	pha4145299.lnk.telstra.net	0
203.27.187.63	—	0
203.27.187.64	—	0
203.27.187.65	bundle-ether1051-117.wel-edge901.perth.telstra.net	0
203.27.187.66	eur3472964.lnk.telstra.net	0
203.27.187.67	—	0
203.27.187.68	—	0
203.27.187.69	bundle-ether1053-404.lon-edge902.melbourne.telstra.net	0
203.27.187.70	tes3462496.lnk.telstra.net	0
203.27.187.71	—	0
203.27.187.72	—	0
203.27.187.73	bundle-ether1052-127.pie-edge901.perth.telstra.net	0
203.27.187.74	alb3536887.lnk.telstra.net	0
203.27.187.75	—	0
203.27.187.76	—	0
203.27.187.77	bundle-ether1051-350.lon-edge901.melbourne.telstra.net	0
203.27.187.78	spo2378648.lnk.telstra.net	0
203.27.187.79	—	0
203.27.187.80	—	0
203.27.187.81	ae8-16272.wt9f-e-071.perth.telstra.net	0
203.27.187.82	bus4185919.lnk.telstra.net	0
203.27.187.83	—	0
203.27.187.84	—	0
203.27.187.85	bundle-ether1051-627.pie-edge902.perth.telstra.net	0
203.27.187.86	cur3095237.lnk.telstra.net	0
203.27.187.87	—	0
203.27.187.88	—	0
203.27.187.89	bundle-ether1054-734.chw-edge901.sydney.telstra.net	0
203.27.187.90	doe3019625.lnk.telstra.net	0
203.27.187.91	—	0
203.27.187.92	—	0
203.27.187.93	bundle-ether1081-315.cha-edge903.brisbane.telstra.net	0
203.27.187.94	col4041781.lnk.telstra.net	0
203.27.187.95	—	0
203.27.187.96	—	0
203.27.187.97	bundle-ether1111-370.pie-edge903.perth.telstra.net	0
203.27.187.98	fed4059327.lnk.telstra.net	0
203.27.187.99	—	0
203.27.187.100	—	0
203.27.187.101	bundle-ether1051-593.lon-edge901.melbourne.telstra.net	0
203.27.187.102	met2378660.lnk.telstra.net	0
203.27.187.103	—	0
203.27.187.104	—	0
203.27.187.105	bundle-ether1051-375.wel-edge902.perth.telstra.net	0
203.27.187.106	con2381100.lnk.telstra.net	0
203.27.187.107	—	0
203.27.187.108	—	0
203.27.187.109	bundle-ether1053-266.woo-edge902.brisbane.telstra.net	0
203.27.187.110	com4288722.lnk.telstra.net	0
203.27.187.111	—	0
203.27.187.112	—	0
203.27.187.113	bundle-ether1051-589.lon-edge901.melbourne.telstra.net	0
203.27.187.114	arc2378497.lnk.telstra.net	0
203.27.187.115	—	0
203.27.187.116	—	0
203.27.187.117	bundle-ether1081-532.cha-edge903.brisbane.telstra.net	0
203.27.187.118	lin4428037.lnk.telstra.net	0
203.27.187.119	—	0
203.27.187.120	bundle-ether1112-210.wel-edge901.perth.telstra.net	0
203.27.187.121	d0000296t.lnk.telstra.net	0
203.27.187.122	bundle-ether1112-923.lon-edge903.melbourne.telstra.net	0
203.27.187.123	d0000299t.lnk.telstra.net	0
203.27.187.124	—	0
203.27.187.125	bundle-ether1052-128.fli-edge901.adelaide.telstra.net	0
203.27.187.126	com4269183.lnk.telstra.net	0
203.27.187.127	—	0
203.27.187.128	—	0
203.27.187.129	bundle-ether1052-216.chw-edge902.sydney.telstra.net	0
203.27.187.130	evo3481548.lnk.telstra.net	0
203.27.187.131	—	0
203.27.187.132	—	0
203.27.187.133	bundle-ether1054-287.woo-edge902.brisbane.telstra.net	0
203.27.187.134	geo4153827.lnk.telstra.net	0
203.27.187.135	—	0
203.27.187.136	—	0
203.27.187.137	bundle-ether1112-170.chw-edge903.sydney.telstra.net	0
203.27.187.138	doe3014929.lnk.telstra.net	0
203.27.187.139	—	0
203.27.187.140	—	0
203.27.187.141	bundle-ether1082-352.win-edge903.melbourne.telstra.net	0
203.27.187.142	eng4361362.lnk.telstra.net	0
203.27.187.143	—	0
203.27.187.144	—	0
203.27.187.145	bundle-ether1081-484.lon-edge903.melbourne.telstra.net	0
203.27.187.146	com3961650.lnk.telstra.net	0
203.27.187.147	—	0
203.27.187.148	—	0
203.27.187.149	bundle-ether1053-128.lon-edge901.melbourne.telstra.net	0
203.27.187.150	dep3921607.lnk.telstra.net	0
203.27.187.151	—	0
203.27.187.152	—	0
203.27.187.153	—	0
203.27.187.154	—	0
203.27.187.155	—	0
203.27.187.156	—	0
203.27.187.157	bundle-ether1052-423.chw-edge901.sydney.telstra.net	0
203.27.187.158	cro2308252.lnk.telstra.net	0
203.27.187.159	—	0
203.27.187.160	—	0
203.27.187.161	bundle-ether1051-103.civ-edge901.canberra.telstra.net	0
203.27.187.162	ser4432937.lnk.telstra.net	0
203.27.187.163	—	0
203.27.187.164	—	0
203.27.187.165	bundle-ether1053-434.lon-edge902.melbourne.telstra.net	0
203.27.187.166	she3501060.lnk.telstra.net	0
203.27.187.167	—	0
203.27.187.168	—	0
203.27.187.169	—	0
203.27.187.170	—	0
203.27.187.171	—	0
203.27.187.172	—	0
203.27.187.173	bundle-ether1051-795.lon-edge902.melbourne.telstra.net	0
203.27.187.174	cha3475153.lnk.telstra.net	0
203.27.187.175	—	0
203.27.187.176	—	0
203.27.187.177	bundle-ether1113-1080.ken-edge903.sydney.telstra.net	0
203.27.187.178	pet4358045.lnk.telstra.net	0
203.27.187.179	—	0
203.27.187.180	—	0
203.27.187.181	bundle-ether1052-173.dav-edge901.hobart.telstra.net	0
203.27.187.182	tes3457261.lnk.telstra.net	0
203.27.187.183	—	0
203.27.187.184	—	0
203.27.187.185	—	0
203.27.187.186	—	0
203.27.187.187	—	0
203.27.187.188	—	0
203.27.187.189	ae8-16246.3nso-e-070.sydney.telstra.net	0
203.27.187.190	fre4057636.lnk.telstra.net	0
203.27.187.191	—	0
203.27.187.192	—	0
203.27.187.193	bundle-ether1081-333.ken-edge903.sydney.telstra.net	0
203.27.187.194	tel3985443.lnk.telstra.net	0
203.27.187.195	—	0
203.27.187.196	—	0
203.27.187.197	bundle-ether1082-164.ken-edge903.sydney.telstra.net	0
203.27.187.198	nsw4311423.lnk.telstra.net	0
203.27.187.199	—	0
203.27.187.200	—	0
203.27.187.201	bundle-ether1053-263.lon-edge902.melbourne.telstra.net	0
203.27.187.202	tel3446227.lnk.telstra.net	0
203.27.187.203	—	0
203.27.187.204	—	0
203.27.187.205	bundle-ether1081-293.wel-edge903.perth.telstra.net	0
203.27.187.206	int4215800.lnk.telstra.net	0
203.27.187.207	—	0
203.27.187.208	—	0
203.27.187.209	—	0
203.27.187.210	—	0
203.27.187.211	—	0
203.27.187.212	—	0
203.27.187.213	bundle-ether1055-132.win-edge901.melbourne.telstra.net	0
203.27.187.214	pow2380082.lnk.telstra.net	0
203.27.187.215	—	0
203.27.187.216	—	0
203.27.187.217	bundle-ether1051-422.wel-edge902.perth.telstra.net	0
203.27.187.218	hps2381294.lnk.telstra.net	0
203.27.187.219	—	0
203.27.187.220	—	0
203.27.187.221	bundle-ether1052-747.ken-edge901.sydney.telstra.net	0
203.27.187.222	nsw2379887.lnk.telstra.net	0
203.27.187.223	—	0
203.27.187.224	—	0
203.27.187.225	bundle-ether1053-302.chw-edge901.sydney.telstra.net	0
203.27.187.226	nrc2380915.lnk.telstra.net	0
203.27.187.227	—	0
203.27.187.228	—	0
203.27.187.229	bundle-ether1111-507.lon-edge903.melbourne.telstra.net	0
203.27.187.230	cob4147301.lnk.telstra.net	0
203.27.187.231	—	0
203.27.187.232	—	0
203.27.187.233	bundle-ether1053-492.win-edge901.melbourne.telstra.net	0
203.27.187.234	nre2380800.lnk.telstra.net	0
203.27.187.235	—	0
203.27.187.236	—	0
203.27.187.237	ae8-16355.wt9f-e-070.perth.telstra.net	0
203.27.187.238	eco4007701.lnk.telstra.net	0
203.27.187.239	—	0
203.27.187.240	—	0
203.27.187.241	bundle-ether1051-267.woo-edge901.brisbane.telstra.net	0
203.27.187.242	arc2380145.lnk.telstra.net	0
203.27.187.243	—	0
203.27.187.244	—	0
203.27.187.245	bundle-ether1113-1058.ken-edge903.sydney.telstra.net	0
203.27.187.246	nsw4351303.lnk.telstra.net	0
203.27.187.247	—	0
203.27.187.248	—	0
203.27.187.249	bundle-ether1081-268.ken-edge903.sydney.telstra.net	0
203.27.187.250	gja3903837.lnk.telstra.net	0
203.27.187.251	—	0
203.27.187.252	—	0
203.27.187.253	ae7-101.wqbe-e-072.brisbane.telstra.net	0
203.27.187.254	str4193614.lnk.telstra.net	0
203.27.187.255	—	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 203.27.187.45

traceroute to 203.27.187.45 (203.27.187.45): 64 hops max, 52 byte packets

5 [AS1221] 61.8.19.225 1.026 ms

6 [AS1221] 203.50.11.111 2.404 ms

7 [AS1221] 203.27.187.45 0.735 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On March 6, 2026