81.187.75.0/24 IP Range

Summary

ASN	AS20712 Andrews & Arnold Ltd
BGP	81.187.0.0/16
IPs with RDNS	241
Hosted Domains	0
Pingable IPs	41
Router IPs	1


81.187.75.0	network.wireless.knigma.org	0
81.187.75.1	shrewd.wireless.knigma.org	0
81.187.75.2	pi.wireless.knigma.org	0
81.187.75.3	mac.wireless.knigma.org	0
81.187.75.4	lap.wireless.knigma.org	0
81.187.75.5	nanohd-lounge.wireless.knigma.org	0
81.187.75.6	nanohd-office.wireless.knigma.org	0
81.187.75.7	dhcp1.wireless.knigma.org	0
81.187.75.8	dhcp2.wireless.knigma.org	0
81.187.75.9	dhcp3.wireless.knigma.org	0
81.187.75.10	dhcp4.wireless.knigma.org	0
81.187.75.11	dhcp5.wireless.knigma.org	0
81.187.75.12	dhcp6.wireless.knigma.org	0
81.187.75.13	dhcp7.wireless.knigma.org	0
81.187.75.14	dhcp8.wireless.knigma.org	0
81.187.75.15	dhcp9.wireless.knigma.org	0
81.187.75.16	dhcp10.wireless.knigma.org	0
81.187.75.17	dhcp11.wireless.knigma.org	0
81.187.75.18	dhcp12.wireless.knigma.org	0
81.187.75.19	dhcp13.wireless.knigma.org	0
81.187.75.20	dhcp14.wireless.knigma.org	0
81.187.75.21	dhcp15.wireless.knigma.org	0
81.187.75.22	dhcp16.wireless.knigma.org	0
81.187.75.23	dhcp17.wireless.knigma.org	0
81.187.75.24	dhcp18.wireless.knigma.org	0
81.187.75.25	dhcp19.wireless.knigma.org	0
81.187.75.26	dhcp20.wireless.knigma.org	0
81.187.75.27	nanohd-boost.wireless.knigma.org	0
81.187.75.28	appletv-lounge.wireless.knigma.org	0
81.187.75.29	denon.wireless.knigma.org	0
81.187.75.30	nanohd-gym.wireless.knigma.org	0
81.187.75.31	broadcast.wireless.knigma.org	0
81.187.75.32	32.75.187.81.in-addr.arpa	0
81.187.75.33	33.75.187.81.in-addr.arpa	0
81.187.75.34	34.75.187.81.in-addr.arpa	0
81.187.75.35	35.75.187.81.in-addr.arpa	0
81.187.75.36	36.75.187.81.in-addr.arpa	0
81.187.75.37	37.75.187.81.in-addr.arpa	0
81.187.75.38	38.75.187.81.in-addr.arpa	0
81.187.75.39	39.75.187.81.in-addr.arpa	0
81.187.75.40	81-187-75-40.ip4.reverse-dns.uk	0
81.187.75.41	81-187-75-41.ip4.reverse-dns.uk	0
81.187.75.42	42.75.187.81.in-addr.arpa	0
81.187.75.43	43.75.187.81.in-addr.arpa	0
81.187.75.44	44.75.187.81.in-addr.arpa	0
81.187.75.45	45.75.187.81.in-addr.arpa	0
81.187.75.46	46.75.187.81.in-addr.arpa	0
81.187.75.47	47.75.187.81.in-addr.arpa	0
81.187.75.48	48.75.187.81.in-addr.arpa	0
81.187.75.49	49.75.187.81.in-addr.arpa	0
81.187.75.50	50.75.187.81.in-addr.arpa	0
81.187.75.51	81-187-75-51.ip4.reverse-dns.uk	0
81.187.75.52	52.75.187.81.in-addr.arpa	0
81.187.75.53	53.75.187.81.in-addr.arpa	0
81.187.75.54	54.75.187.81.in-addr.arpa	0
81.187.75.55	55.75.187.81.in-addr.arpa	0
81.187.75.56	56.75.187.81.in-addr.arpa	0
81.187.75.57	57.75.187.81.in-addr.arpa	0
81.187.75.58	58.75.187.81.in-addr.arpa	0
81.187.75.59	59.75.187.81.in-addr.arpa	0
81.187.75.60	60.75.187.81.in-addr.arpa	0
81.187.75.61	81-187-75-61.ip4.reverse-dns.uk	0
81.187.75.62	62.75.187.81.in-addr.arpa	0
81.187.75.63	63.75.187.81.in-addr.arpa	0
81.187.75.64	64.75.187.81.in-addr.arpa	0
81.187.75.65	65.75.187.81.in-addr.arpa	0
81.187.75.66	66.75.187.81.in-addr.arpa	0
81.187.75.67	67.75.187.81.in-addr.arpa	0
81.187.75.68	68.75.187.81.in-addr.arpa	0
81.187.75.69	69.75.187.81.in-addr.arpa	0
81.187.75.70	70.75.187.81.in-addr.arpa	0
81.187.75.71	71.75.187.81.in-addr.arpa	0
81.187.75.72	72.75.187.81.in-addr.arpa	0
81.187.75.73	mailsrv.p4m.online	0
81.187.75.74	74.75.187.81.in-addr.arpa	0
81.187.75.75	75.75.187.81.in-addr.arpa	0
81.187.75.76	76.75.187.81.in-addr.arpa	0
81.187.75.77	77.75.187.81.in-addr.arpa	0
81.187.75.78	78.75.187.81.in-addr.arpa	0
81.187.75.79	79.75.187.81.in-addr.arpa	0
81.187.75.80	—	0
81.187.75.81	coconut.noisytoot.org	0
81.187.75.82	—	0
81.187.75.83	—	0
81.187.75.84	—	0
81.187.75.85	—	0
81.187.75.86	—	0
81.187.75.87	—	0
81.187.75.88	—	0
81.187.75.89	—	0
81.187.75.90	—	0
81.187.75.91	—	0
81.187.75.92	—	0
81.187.75.93	—	0
81.187.75.94	—	0
81.187.75.95	—	0
81.187.75.96	96.75.187.81.in-addr.arpa	0
81.187.75.97	81-187-75-97.ip4.reverse-dns.uk	0
81.187.75.98	98.75.187.81.in-addr.arpa	0
81.187.75.99	99.75.187.81.in-addr.arpa	0
81.187.75.100	100.75.187.81.in-addr.arpa	0
81.187.75.101	101.75.187.81.in-addr.arpa	0
81.187.75.102	102.75.187.81.in-addr.arpa	0
81.187.75.103	103.75.187.81.in-addr.arpa	0
81.187.75.104	104.75.187.81.in-addr.arpa	0
81.187.75.105	81-187-75-105.ip4.reverse-dns.uk	0
81.187.75.106	106.75.187.81.in-addr.arpa	0
81.187.75.107	107.75.187.81.in-addr.arpa	0
81.187.75.108	81-187-75-108.ip4.reverse-dns.uk	0
81.187.75.109	109.75.187.81.in-addr.arpa	0
81.187.75.110	110.75.187.81.in-addr.arpa	0
81.187.75.111	111.75.187.81.in-addr.arpa	0
81.187.75.112	112.75.187.81.in-addr.arpa	0
81.187.75.113	113.75.187.81.in-addr.arpa	0
81.187.75.114	114.75.187.81.in-addr.arpa	0
81.187.75.115	115.75.187.81.in-addr.arpa	0
81.187.75.116	116.75.187.81.in-addr.arpa	0
81.187.75.117	117.75.187.81.in-addr.arpa	0
81.187.75.118	118.75.187.81.in-addr.arpa	0
81.187.75.119	119.75.187.81.in-addr.arpa	0
81.187.75.120	120.75.187.81.in-addr.arpa	0
81.187.75.121	121.75.187.81.in-addr.arpa	0
81.187.75.122	122.75.187.81.in-addr.arpa	0
81.187.75.123	123.75.187.81.in-addr.arpa	0
81.187.75.124	124.75.187.81.in-addr.arpa	0
81.187.75.125	125.75.187.81.in-addr.arpa	0
81.187.75.126	126.75.187.81.in-addr.arpa	0
81.187.75.127	127.75.187.81.in-addr.arpa	0
81.187.75.128	128.75.187.81.in-addr.arpa	0
81.187.75.129	129.75.187.81.in-addr.arpa	0
81.187.75.130	130.75.187.81.in-addr.arpa	0
81.187.75.131	131.75.187.81.in-addr.arpa	0
81.187.75.132	132.75.187.81.in-addr.arpa	0
81.187.75.133	133.75.187.81.in-addr.arpa	0
81.187.75.134	134.75.187.81.in-addr.arpa	0
81.187.75.135	135.75.187.81.in-addr.arpa	0
81.187.75.136	136.75.187.81.in-addr.arpa	0
81.187.75.137	137.75.187.81.in-addr.arpa	0
81.187.75.138	81-187-75-138.ip4.reverse-dns.uk	0
81.187.75.139	139.75.187.81.in-addr.arpa	0
81.187.75.140	140.75.187.81.in-addr.arpa	0
81.187.75.141	141.75.187.81.in-addr.arpa	0
81.187.75.142	142.75.187.81.in-addr.arpa	0
81.187.75.143	143.75.187.81.in-addr.arpa	0
81.187.75.144	81-187-75-144.ip4.reverse-dns.uk	0
81.187.75.145	81-187-75-145.ip4.reverse-dns.uk	0
81.187.75.146	146.75.187.81.in-addr.arpa	0
81.187.75.147	ext-gw.larted.org.uk	0
81.187.75.148	148.75.187.81.in-addr.arpa	0
81.187.75.149	149.75.187.81.in-addr.arpa	0
81.187.75.150	81-187-75-150.ip4.reverse-dns.uk	0
81.187.75.151	81-187-75-151.ip4.reverse-dns.uk	0
81.187.75.152	81-187-75-152.ip4.reverse-dns.uk	0
81.187.75.153	153.75.187.81.in-addr.arpa	0
81.187.75.154	81-187-75-154.ip4.reverse-dns.uk	0
81.187.75.155	155.75.187.81.in-addr.arpa	0
81.187.75.156	156.75.187.81.in-addr.arpa	0
81.187.75.157	81-187-75-157.ip4.reverse-dns.uk	0
81.187.75.158	81-187-75-158.ip4.reverse-dns.uk	0
81.187.75.159	81-187-75-159.ip4.reverse-dns.uk	0
81.187.75.160	81-187-75-160.ip4.reverse-dns.uk	0
81.187.75.161	161.75.187.81.in-addr.arpa	0
81.187.75.162	162.75.187.81.in-addr.arpa	0
81.187.75.163	163.75.187.81.in-addr.arpa	0
81.187.75.164	81-187-75-164.ip4.reverse-dns.uk	0
81.187.75.165	165.75.187.81.in-addr.arpa	0
81.187.75.166	166.75.187.81.in-addr.arpa	0
81.187.75.167	81-187-75-167.ip4.reverse-dns.uk	0
81.187.75.168	168.75.187.81.in-addr.arpa	0
81.187.75.169	169.75.187.81.in-addr.arpa	0
81.187.75.170	81-187-75-170.ip4.reverse-dns.uk	0
81.187.75.171	171.75.187.81.in-addr.arpa	0
81.187.75.172	172.75.187.81.in-addr.arpa	0
81.187.75.173	81-187-75-173.ip4.reverse-dns.uk	0
81.187.75.174	174.75.187.81.in-addr.arpa	0
81.187.75.175	175.75.187.81.in-addr.arpa	0
81.187.75.176	176.75.187.81.in-addr.arpa	0
81.187.75.177	177.75.187.81.in-addr.arpa	0
81.187.75.178	81-187-75-178.ip4.reverse-dns.uk	0
81.187.75.179	179.75.187.81.in-addr.arpa	0
81.187.75.180	180.75.187.81.in-addr.arpa	0
81.187.75.181	181.75.187.81.in-addr.arpa	0
81.187.75.182	182.75.187.81.in-addr.arpa	0
81.187.75.183	183.75.187.81.in-addr.arpa	0
81.187.75.184	81-187-75-184.ip4.reverse-dns.uk	0
81.187.75.185	185.75.187.81.in-addr.arpa	0
81.187.75.186	81-187-75-186.ip4.reverse-dns.uk	0
81.187.75.187	81-187-75-187.ip4.reverse-dns.uk	0
81.187.75.188	188.75.187.81.in-addr.arpa	0
81.187.75.189	189.75.187.81.in-addr.arpa	0
81.187.75.190	81-187-75-190.ip4.reverse-dns.uk	0
81.187.75.191	81-187-75-191.ip4.reverse-dns.uk	0
81.187.75.192	192.75.187.81.in-addr.arpa	0
81.187.75.193	193.75.187.81.in-addr.arpa	0
81.187.75.194	194.75.187.81.in-addr.arpa	0
81.187.75.195	195.75.187.81.in-addr.arpa	0
81.187.75.196	196.75.187.81.in-addr.arpa	0
81.187.75.197	197.75.187.81.in-addr.arpa	0
81.187.75.198	198.75.187.81.in-addr.arpa	0
81.187.75.199	199.75.187.81.in-addr.arpa	0
81.187.75.200	200.75.187.81.in-addr.arpa	0
81.187.75.201	201.75.187.81.in-addr.arpa	0
81.187.75.202	81-187-75-202.ip4.reverse-dns.uk	0
81.187.75.203	203.75.187.81.in-addr.arpa	0
81.187.75.204	81-187-75-204.ip4.reverse-dns.uk	0
81.187.75.205	81-187-75-205.ip4.reverse-dns.uk	0
81.187.75.206	81-187-75-206.ip4.reverse-dns.uk	0
81.187.75.207	207.75.187.81.in-addr.arpa	0
81.187.75.208	208.75.187.81.in-addr.arpa	0
81.187.75.209	209.75.187.81.in-addr.arpa	0
81.187.75.210	210.75.187.81.in-addr.arpa	0
81.187.75.211	211.75.187.81.in-addr.arpa	0
81.187.75.212	81-187-75-212.ip4.reverse-dns.uk	0
81.187.75.213	81-187-75-213.ip4.reverse-dns.uk	0
81.187.75.214	81-187-75-214.ip4.reverse-dns.uk	0
81.187.75.215	215.75.187.81.in-addr.arpa	0
81.187.75.216	216.75.187.81.in-addr.arpa	0
81.187.75.217	217.75.187.81.in-addr.arpa	0
81.187.75.218	218.75.187.81.in-addr.arpa	0
81.187.75.219	81-187-75-219.ip4.reverse-dns.uk	0
81.187.75.220	220.75.187.81.in-addr.arpa	0
81.187.75.221	221.75.187.81.in-addr.arpa	0
81.187.75.222	222.75.187.81.in-addr.arpa	0
81.187.75.223	81-187-75-223.ip4.reverse-dns.uk	0
81.187.75.224	224.75.187.81.in-addr.arpa	0
81.187.75.225	81-187-75-225.ip4.reverse-dns.uk	0
81.187.75.226	226.75.187.81.in-addr.arpa	0
81.187.75.227	227.75.187.81.in-addr.arpa	0
81.187.75.228	228.75.187.81.in-addr.arpa	0
81.187.75.229	81-187-75-229.ip4.reverse-dns.uk	0
81.187.75.230	230.75.187.81.in-addr.arpa	0
81.187.75.231	231.75.187.81.in-addr.arpa	0
81.187.75.232	232.75.187.81.in-addr.arpa	0
81.187.75.233	81-187-75-233.ip4.reverse-dns.uk	0
81.187.75.234	234.75.187.81.in-addr.arpa	0
81.187.75.235	81-187-75-235.ip4.reverse-dns.uk	0
81.187.75.236	236.75.187.81.in-addr.arpa	0
81.187.75.237	237.75.187.81.in-addr.arpa	0
81.187.75.238	238.75.187.81.in-addr.arpa	0
81.187.75.239	239.75.187.81.in-addr.arpa	0
81.187.75.240	240.75.187.81.in-addr.arpa	0
81.187.75.241	241.75.187.81.in-addr.arpa	0
81.187.75.242	242.75.187.81.in-addr.arpa	0
81.187.75.243	243.75.187.81.in-addr.arpa	0
81.187.75.244	244.75.187.81.in-addr.arpa	0
81.187.75.245	245.75.187.81.in-addr.arpa	0
81.187.75.246	246.75.187.81.in-addr.arpa	0
81.187.75.247	247.75.187.81.in-addr.arpa	0
81.187.75.248	248.75.187.81.in-addr.arpa	0
81.187.75.249	249.75.187.81.in-addr.arpa	0
81.187.75.250	81-187-75-250.ip4.reverse-dns.uk	0
81.187.75.251	251.75.187.81.in-addr.arpa	0
81.187.75.252	81-187-75-252.ip4.reverse-dns.uk	0
81.187.75.253	253.75.187.81.in-addr.arpa	0
81.187.75.254	254.75.187.81.in-addr.arpa	0
81.187.75.255	255.75.187.81.in-addr.arpa	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 81.187.75.64

traceroute to 81.187.75.64 (81.187.75.64): 64 hops max, 52 byte packets

4 [AS20712] 192.150.92.24 2.434 ms

5 [AS20712] 192.150.92.74 1.222 ms

6 [AS20712] 81.187.75.64 2.93 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On October 3rd 2025