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AS12912

AS12912 is T-Mobile Polska S.A..

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (4 Nov 2026)

Short answer

AS12912 belongs to T-Mobile Polska S.A.. DB-IP Lite attributes 1,092,608 IPv4 addresses in 74 ranges and 4 IPv6 ranges to it, all or nearly all of the IPv4 space in Poland. The number is registered with RIPE NCC in Poland on 30 Dec 1999.

Facts for AS12912
Operator (DB-IP)T-Mobile Polska S.A.
IPv4 addresses1,092,608
IPv4 ranges74
IPv6 ranges4
RegistryRIPE NCC
Registered30 Dec 1999
Registry countryPoland (PL)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

T-Mobile Polska S.A. hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 4 IPv6 ranges for AS12912, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

PL100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
37.30.0.0 – 37.31.255.25537.30.0.0/15131,072
46.204.0.0 – 46.205.255.25546.204.0.0/15131,072
62.29.128.0 – 62.29.255.25562.29.128.0/1732,768
62.152.128.0 – 62.152.159.25562.152.128.0/198,192
78.133.128.0 – 78.133.143.25578.133.128.0/204,096
78.133.148.0 – 78.133.152.25578.133.148.0/22, 78.133.152.0/241,280
78.133.154.0 – 78.133.165.25578.133.154.0/23, 78.133.156.0/22 …3,072
78.133.167.0 – 78.133.167.25578.133.167.0/24256
78.133.169.0 – 78.133.169.25578.133.169.0/24256
78.133.172.0 – 78.133.195.25578.133.172.0/22, 78.133.176.0/20 …6,144
78.133.197.0 – 78.133.227.25578.133.197.0/24, 78.133.198.0/23 …7,936
78.133.229.0 – 78.133.236.25578.133.229.0/24, 78.133.230.0/23 …2,048
78.133.238.0 – 78.133.245.25578.133.238.0/23, 78.133.240.0/22 …2,048
78.133.247.0 – 78.133.255.25578.133.247.0/24, 78.133.248.0/212,304
83.220.96.0 – 83.220.127.25583.220.96.0/198,192
85.202.56.0 – 85.202.57.25585.202.56.0/23512
85.219.128.0 – 85.219.141.25585.219.128.0/21, 85.219.136.0/22 …3,584
85.219.143.0 – 85.219.147.25585.219.143.0/24, 85.219.144.0/221,280
85.219.149.0 – 85.219.172.25585.219.149.0/24, 85.219.150.0/23 …6,144
85.219.174.0 – 85.219.191.25585.219.174.0/23, 85.219.176.0/204,608
85.219.193.0 – 85.219.207.25585.219.193.0/24, 85.219.194.0/23 …3,840
85.219.210.0 – 85.219.212.25585.219.210.0/23, 85.219.212.0/24768
85.219.214.0 – 85.219.215.25585.219.214.0/23512
85.219.217.0 – 85.219.228.25585.219.217.0/24, 85.219.218.0/23 …3,072
85.219.230.0 – 85.219.243.25585.219.230.0/23, 85.219.232.0/21 …3,584
85.219.248.0 – 85.219.255.25585.219.248.0/212,048
89.174.0.0 – 89.174.24.25589.174.0.0/20, 89.174.16.0/21 …6,400
89.174.28.0 – 89.174.31.25589.174.28.0/221,024
89.174.34.0 – 89.174.74.25589.174.34.0/23, 89.174.36.0/22 …10,496
89.174.76.0 – 89.174.107.25589.174.76.0/22, 89.174.80.0/20 …8,192
89.174.110.0 – 89.174.115.25589.174.110.0/23, 89.174.112.0/221,536
89.174.117.0 – 89.174.162.25589.174.117.0/24, 89.174.118.0/23 …11,776
89.174.164.0 – 89.174.183.25589.174.164.0/22, 89.174.168.0/21 …5,120
89.174.185.0 – 89.174.227.25589.174.185.0/24, 89.174.186.0/23 …11,008
89.174.230.0 – 89.174.255.25589.174.230.0/23, 89.174.232.0/21 …6,656
91.213.239.0 – 91.213.239.25591.213.239.0/24256
91.223.23.0 – 91.223.23.25591.223.23.0/24256
94.42.0.0 – 94.42.100.25594.42.0.0/18, 94.42.64.0/19 …25,856
94.42.103.0 – 94.42.131.25594.42.103.0/24, 94.42.104.0/21 …7,424
94.42.133.0 – 94.42.175.25594.42.133.0/24, 94.42.134.0/23 …11,008
94.42.180.0 – 94.42.194.25594.42.180.0/22, 94.42.184.0/21 …3,840
94.42.197.0 – 94.42.255.25594.42.197.0/24, 94.42.198.0/23 …15,104
157.25.0.0 – 157.25.56.255157.25.0.0/19, 157.25.32.0/20 …14,592
157.25.58.0 – 157.25.129.255157.25.58.0/23, 157.25.60.0/22 …18,432
157.25.133.0 – 157.25.139.255157.25.133.0/24, 157.25.134.0/23 …1,792
157.25.141.0 – 157.25.142.255157.25.141.0/24, 157.25.142.0/24512
157.25.144.0 – 157.25.149.255157.25.144.0/22, 157.25.148.0/231,536
157.25.151.0 – 157.25.171.255157.25.151.0/24, 157.25.152.0/21 …5,376
157.25.173.0 – 157.25.173.255157.25.173.0/24256
157.25.176.0 – 157.25.255.255157.25.176.0/20, 157.25.192.0/1820,480
2001:1b80:: – 2001:1b87:ffff:ffff:ffff:ffff:ffff:ffff2001:1b80::/29IPv6
2001:4190:: – 2001:4190:8023:ffff:ffff:ffff:ffff:ffff2001:4190::/33IPv6
2001:4190:8026:: – 2001:4190:8031:ffff:ffff:ffff:ffff:ffff2001:4190:8026::/47IPv6
2001:4190:8033:: – 2001:4190:ffff:ffff:ffff:ffff:ffff:ffff2001:4190:8033::/48IPv6
Showing 50 of 74 IPv4 and 4 of 4 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 5 Nov 2026