AS21127 ZSTTKAS Joint Stock Company TransTeleCom

ZSTTKAS Joint Stock Company TransTeleCom · registered in Russia

IPv4 addresses214,528187 prefixes · 0.007% of announced IPv4

Rank in Russia#27largest network in RU by IPv4 space, of 4,937 · 0.49% of RU

Rank worldwide#1,028of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)21 prefixes

CountryRussia4,993 ASNs registered there

Open AS21127 in ASN lookup Look up an IP in this network (37.49.192.1) All networks in Russia

IPv4 prefixes

All 187 prefixes, in address order.

37.49.192.0/21
37.49.200.0/22
37.49.206.0/24
37.49.208.0/20
37.205.48.0/21
37.205.64.0/21
37.205.72.0/22
37.205.76.0/24
37.205.78.0/23
37.205.80.0/20
46.50.128.0/22
46.50.132.0/23
46.50.134.0/23
46.50.136.0/21
46.50.144.0/20
46.50.160.0/23
46.50.163.0/24
46.50.164.0/22
46.50.168.0/21
46.50.176.0/21
46.50.184.0/21
46.50.192.0/21
46.50.200.0/22
46.50.204.0/23
46.50.206.0/24
46.50.208.0/20
46.50.224.0/19
46.241.0.0/20
46.241.16.0/23
46.241.20.0/22
46.241.24.0/21
46.241.32.0/21
46.241.40.0/22
46.241.45.0/24
46.241.46.0/23
46.241.48.0/20
46.241.64.0/22
46.241.70.0/23
46.241.72.0/22
46.241.76.0/23
46.241.80.0/22
46.241.86.0/23
46.241.88.0/24
46.241.90.0/23
46.241.92.0/22
46.241.96.0/23
46.241.104.0/23
46.241.107.0/24
46.241.108.0/22
46.241.112.0/21
46.241.120.0/22
46.241.124.0/23
46.241.127.0/24
80.89.128.0/21
80.89.136.0/23
80.89.138.0/24
80.89.140.0/22
80.89.144.0/23
80.89.146.0/24
80.89.147.0/24
80.89.148.0/22
80.89.152.0/21
81.1.192.0/21
81.1.200.0/22
81.1.204.0/22
81.1.210.0/23
81.1.212.0/22
81.1.216.0/21
81.1.224.0/22
81.1.228.0/23
81.1.230.0/23
81.1.233.0/24
81.1.234.0/23
81.1.236.0/22
81.1.240.0/23
81.1.242.0/24
81.1.244.0/22
81.1.248.0/21
82.200.0.0/23
82.200.2.0/23
82.200.4.0/23
82.200.6.0/23
82.200.8.0/21
82.200.16.0/24
82.200.18.0/23
82.200.20.0/23
82.200.22.0/23
82.200.24.0/24
82.200.25.0/24
82.200.26.0/23
82.200.28.0/22
82.200.32.0/20
82.200.48.0/23
82.200.50.0/24
82.200.52.0/22
82.200.56.0/23
82.200.59.0/24
82.200.60.0/22
82.200.64.0/21
82.200.72.0/24
82.200.73.0/24
82.200.74.0/23
82.200.76.0/24
82.200.78.0/23
82.200.80.0/20
82.200.96.0/21
82.200.104.0/21
82.200.112.0/22
82.200.116.0/23
82.200.118.0/24
82.200.119.0/24
82.200.120.0/23
82.200.124.0/22
91.105.128.0/24
91.105.130.0/23
91.105.132.0/22
91.105.136.0/22
91.105.140.0/23
91.105.143.0/24
91.105.144.0/22
91.105.148.0/23
91.105.150.0/24
91.105.152.0/21
91.105.160.0/21
91.105.168.0/22
91.105.172.0/23
91.105.174.0/24
91.105.176.0/22
91.105.184.0/21
91.238.136.0/22
94.251.4.0/22
94.251.8.0/21
94.251.18.0/23
94.251.21.0/24
94.251.22.0/23
94.251.24.0/21
94.251.32.0/20
94.251.48.0/21
94.251.56.0/22
94.251.61.0/24
94.251.62.0/23
94.251.64.0/20
94.251.80.0/21
94.251.90.0/23
94.251.93.0/24
94.251.94.0/23
94.251.96.0/20
94.251.112.0/21
94.251.121.0/24
94.251.122.0/24
94.251.124.0/24
94.251.126.0/23
109.171.2.0/23
109.171.4.0/22
109.171.8.0/21
109.171.16.0/20
109.171.32.0/20
109.171.50.0/23
109.171.53.0/24
109.171.54.0/23
109.171.56.0/23
109.171.59.0/24
109.171.60.0/22
109.171.64.0/21
109.171.72.0/22
109.171.77.0/24
109.171.78.0/23
109.171.80.0/22
109.171.84.0/22
109.171.88.0/21
109.171.96.0/22
109.171.100.0/23
109.171.102.0/24
109.171.104.0/24
109.171.106.0/24
109.171.108.0/22
109.171.112.0/23
109.171.114.0/23
109.171.116.0/22
109.171.120.0/21
188.44.96.0/23
188.44.98.0/24
188.44.100.0/22
188.44.104.0/21
188.44.112.0/23
188.44.116.0/22
188.44.120.0/21

IPv6 prefixes

All 21 prefixes.

2a02:2560::/46
2a02:2560:4::/46
2a02:2560:8::/45
2a02:2560:10::/44
2a02:2560:20::/43
2a02:2560:40::/42
2a02:2560:80::/43
2a02:2560:a0::/47
2a02:2560:a2::/47
2a02:2560:a4::/46
2a02:2560:a8::/45
2a02:2560:b0::/44
2a02:2560:c0::/42
2a02:2560:100::/40
2a02:2560:200::/39
2a02:2560:400::/38
2a02:2560:800::/37
2a02:2560:1000::/36
2a02:2560:2000::/35
2a02:2560:4000::/34
2a02:2560:8000::/33

Similar-sized networks in Russia

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AS56981#30 TOMSK-AS JSC "ER-Telecom Holding"179,200

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