$ query “AS12912” --type=asn → 1 result(s)

AS12912 · TMPL

T-Mobile Polska S.A.

AS12912 belongs to T-Mobile Polska S.A. and is a major transit provider, established in Poland in 2002. The system announces an impressive 1.1 million IPv4 addresses, including a /14, and supports IPv6. The bulk of its IP address space is in Poland, with additional presence in Germany.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #9 in Poland — Top 10 by reach within country

Basic Information

Country
🇵🇱 Poland
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
July 16, 2002
Last Changed
March 04, 2026
Last Seen
April 29, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
47 / 30
IPv6 Prefixes (raw / aggregated)
2 / 2
IPv4 Addresses
1 109 504
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇵🇱 Poland (2 209 280 IPs), 🇩🇪 Germany (256 IPs)
Prefix Changed
March 27, 2026

Reputation

Reputation
Good — 4 flagged IPs out of 1 109 504 total (0.00%)
Open Proxies
1 known open proxies in this network

Connectivity Summary

Upstream Providers
3 upstreams providing transit
Peers
101 networks exchanging traffic without transit
Downstream Customers
210 downstreams buying transit
Unclassified
14 unclassified BGP neighbors
Degree
328 unique BGP neighbors
Reach
434 networks in customer cone

Upstream Providers (3)

  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS33891 — CORE-BACKBONE
  • AS3320 — DTAG (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (47 total)

  • 178.180.0.0/14 (262 144 addresses (/14 prefix))
  • 46.204.0.0/15 (131 072 addresses (/15 prefix))
  • 188.146.0.0/15 (131 072 addresses (/15 prefix))
  • 37.30.0.0/15 (131 072 addresses (/15 prefix))
  • 89.174.0.0/16 (65 536 addresses (/16 prefix))
  • 217.153.0.0/16 (65 536 addresses (/16 prefix))
  • 157.25.0.0/16 (65 536 addresses (/16 prefix))
  • 94.42.0.0/16 (65 536 addresses (/16 prefix))
  • 85.219.128.0/17 (32 768 addresses (/17 prefix))
  • 78.133.128.0/17 (32 768 addresses (/17 prefix))
  • 62.29.128.0/17 (32 768 addresses (/17 prefix))
  • 212.203.128.0/17 (32 768 addresses (/17 prefix))
  • 212.38.192.0/19 (8 192 addresses (/19 prefix))
  • 195.94.192.0/19 (8 192 addresses (/19 prefix))
  • 62.152.128.0/19 (8 192 addresses (/19 prefix))
  • 217.8.160.0/19 (8 192 addresses (/19 prefix))
  • 213.218.96.0/19 (8 192 addresses (/19 prefix))
  • 213.158.192.0/19 (8 192 addresses (/19 prefix))
  • 83.220.96.0/19 (8 192 addresses (/19 prefix))
  • 85.202.56.0/23 (512 addresses (/23 prefix))
  • 193.91.6.0/23 (512 addresses (/23 prefix))
  • 193.33.42.0/23 (512 addresses (/23 prefix))
  • 193.110.80.0/24 (256 addresses (/24 prefix))
  • 194.9.68.0/24 (256 addresses (/24 prefix))
  • 193.105.242.0/24 (256 addresses (/24 prefix))
  • 195.225.69.0/24 (256 addresses (/24 prefix))
  • 91.213.239.0/24 (256 addresses (/24 prefix))
  • 193.105.75.0/24 (256 addresses (/24 prefix))
  • 193.91.1.0/24 (256 addresses (/24 prefix))
  • 91.223.23.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (2 total)

  • 2001:1b80::/29
  • 2001:4190::/32