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

AS12912 · TMPL

T-Mobile Polska S.A.

AS12912 is operated by T-Mobile Polska S.A. and serves as 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. Its primary geographic footprint is in Poland, with additional presence in Germany. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #8 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
May 15, 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
May 14, 2026

Reputation

Reputation
Good — 8 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
100 networks exchanging traffic without transit
Downstream Customers
210 downstreams buying transit
Unclassified
9 unclassified BGP neighbors
Degree
322 unique BGP neighbors
Reach
442 networks in customer cone

Upstream Providers (3)

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

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