AS42772 A1-BY-AS Unitary enterprise A1

A1-BY-AS Unitary enterprise A1 · registered in Belarus

IPv4 addresses248,832148 prefixes · 0.008% of announced IPv4

Rank in Belarus#3largest network in BY by IPv4 space, of 106 · 14.05% of BY

Rank worldwide#938of 79,396 networks with IPv4

IPv66 x /32 (393,216 x /48)3 prefixes

CountryBelarus106 ASNs registered there

Open AS42772 in ASN lookup Look up an IP in this network (37.17.0.1) All networks in Belarus

IPv4 prefixes

All 148 prefixes, in address order.

37.17.0.0/18
37.17.64.0/19
37.17.96.0/20
37.17.112.0/22
37.17.116.0/22
37.17.120.0/21
46.53.128.0/19
46.53.160.0/22
46.53.164.0/23
46.53.166.0/23
46.53.168.0/21
46.53.176.0/20
46.53.192.0/22
46.53.197.0/24
46.53.198.0/23
46.53.200.0/21
46.53.208.0/24
46.53.210.0/23
46.53.212.0/22
46.53.216.0/21
46.53.224.0/19
46.56.129.0/24
46.56.130.0/23
46.56.132.0/22
46.56.136.0/21
46.56.144.0/20
46.56.160.0/19
46.56.192.0/18
46.182.48.0/21
77.74.32.0/21
87.252.231.0/24
87.252.239.0/24
87.252.246.0/23
87.252.248.0/24
87.252.251.0/24
87.252.252.0/24
87.252.254.0/23
91.149.128.0/21
91.149.144.0/21
91.149.152.0/23
91.149.154.0/24
91.149.162.0/24
91.149.165.0/24
91.149.168.0/23
91.149.174.0/24
91.149.182.0/24
91.149.184.0/22
91.149.188.0/24
91.149.190.0/23
92.38.64.0/20
93.125.0.0/24
93.125.2.0/23
93.125.4.0/22
93.125.8.0/21
93.125.16.0/23
93.125.28.0/24
93.125.32.0/24
93.125.36.0/23
93.125.40.0/23
93.125.46.0/23
93.125.51.0/24
93.125.55.0/24
93.125.56.0/23
93.125.62.0/23
93.125.64.0/22
93.125.68.0/23
93.125.74.0/24
93.125.80.0/23
93.125.83.0/24
93.125.84.0/23
93.125.86.0/24
93.125.100.0/22
93.125.112.0/24
93.125.115.0/24
93.125.116.0/23
93.125.119.0/24
93.125.125.0/24
93.125.127.0/24
93.170.184.0/23
93.171.112.0/20
93.191.96.0/21
95.46.16.0/21
95.46.24.0/22
95.46.46.0/24
95.46.200.0/21
95.46.208.0/24
128.65.0.0/18
128.140.240.0/21
128.140.248.0/22
128.140.252.0/23
128.140.255.0/24
146.120.32.0/21
146.120.128.0/20
146.120.144.0/21
151.249.128.0/17
178.163.128.0/21
178.163.136.0/23
178.163.138.0/24
178.163.139.0/24
178.163.140.0/22
178.163.144.0/20
178.163.160.0/22
178.163.164.0/23
178.163.166.0/23
178.163.168.0/21
178.163.176.0/20
178.163.192.0/20
178.163.208.0/21
178.163.216.0/22
178.163.220.0/22
178.172.144.0/22
178.172.151.0/24
178.172.152.0/24
178.172.156.0/22
178.172.176.0/24
178.172.200.0/24
178.172.203.0/24
178.172.205.0/24
178.172.206.0/23
178.172.209.0/24
178.172.210.0/24
178.172.240.0/23
185.61.104.0/22
195.222.64.0/22
195.222.68.0/24
195.222.69.0/24
195.222.70.0/23
195.222.72.0/21
195.222.80.0/23
195.222.82.0/24
195.222.83.0/24
195.222.84.0/22
195.222.88.0/22
195.222.92.0/24
195.222.93.0/24
195.222.94.0/23
213.184.224.0/22
213.184.230.0/24
213.184.232.0/23
213.184.244.0/23
213.184.248.0/21
217.21.33.0/24
217.21.46.0/24
217.21.48.0/24
217.21.51.0/24
217.21.54.0/24
217.21.59.0/24
217.21.60.0/24

IPv6 prefixes

All 3 prefixes.

2a00:1760::/30
2a00:1765::/32
2a03:3000::/32

Similar-sized networks in Belarus

ASNNameIPv4 addresses

AS6697#1 BELPAK-AS Republican Unitary Telecommunication Enterprise Beltelecom1,068,032

AS25106#2 MTSBY-AS Mobile TeleSystems JLLC250,112

AS44087#4 BEST-AS "BeST" CJSC60,928

AS12406#5 BN-AS Business Network Ltd20,736

AS205820#6 VDCBY-AS Unitary enterprise A111,008

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources