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Autonomous System

AS12912

T-Mobile Polska S.A.

Announced IPs
1,092,608
CIDR prefixes
190
ASN
AS12912

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

55/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Mobile allocation +2
  • Trust score 55 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About T-Mobile Polska

T-Mobile Polska S.A. is a Polish mobile phone network operator.

Founded
1996
Headquarters
Warsaw
Industry
telecommunications industry
Parent
Deutsche Telekom
Employees
4,400

⚠ 12 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS12912 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
89.234.234.0/24 AS5588, AS12912 2026-09-10 18:10:48
89.234.241.0/24 AS5588, AS12912 2026-09-10 18:10:48
194.11.216.0/24 AS5588, AS12912 2026-09-10 18:10:48
89.234.205.0/24 AS5588, AS12912 2026-09-10 18:10:48
45.9.234.0/24 AS5588, AS12912 2026-09-10 18:10:48
45.9.233.0/24 AS5588, AS12912 2026-09-10 18:10:48
89.234.238.0/24 AS5588, AS12912 2026-09-10 18:10:48
89.234.233.0/24 AS5588, AS12912 2026-09-10 18:10:48
45.9.235.0/24 AS5588, AS12912 2026-09-10 18:10:48
194.11.132.0/24 AS5588, AS12912 2026-09-10 18:10:48
89.234.206.0/24 AS5588, AS12912 2026-09-10 18:10:48
194.11.220.0/24 AS5588, AS12912 2026-09-10 15:55:47

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 1-5Tbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record RIPE::AS-TMPL

Present at 5 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, Equinix Warsaw, TPIX PL, THINX Warsaw, POZIX

AS12912 — global IP footprint

Cities where AS12912 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
37.30.0.0/15 131.1K
99.2%
T-Mobile Polska S.A. PL Silesia Ruda Śląska
46.204.0.0/15 131.1K
71.9%
T-Mobile Polska S.A. PL West Pomerania Szczecinek
178.180.0.0/15 131.1K
92.1%
T-Mobile Polska S.A. PL
188.146.0.0/15 131.1K
92.9%
T-Mobile Polska S.A. PL Łódź Voivodeship Lodz
178.182.0.0/16 65.5K
99.1%
T-Mobile Polska S.A. PL Mazovia Warsaw
62.29.128.0/17 32.8K
29.1%
T-Mobile Polska S.A. PL
178.183.128.0/17 32.8K
99.3%
T-Mobile Polska S.A. PL Pomerania Słupsk
212.203.128.0/17 32.8K
2.5%
T-Mobile Polska S.A. PL
94.42.0.0/18 16.4K
72.4%
T-Mobile Polska S.A. PL
157.25.64.0/18 16.4K
2.9%
T-Mobile Polska S.A. PL Mazovia Warsaw
157.25.192.0/18 16.4K
22.2%
T-Mobile Polska S.A. PL Mazovia Warsaw
178.183.64.0/18 16.4K
99.4%
T-Mobile Polska S.A. PL Pomerania Krynica Morska
217.153.0.0/18 16.4K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
217.153.192.0/18 16.4K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
62.152.128.0/19 8.2K
24.4%
T-Mobile Polska S.A. PL
83.220.96.0/19 8.2K
64.5%
T-Mobile Polska S.A. PL Łódź Voivodeship Tuszyn
89.174.128.0/19 8.2K
0.0%
T-Mobile Polska S.A. PL Silesia Czeladź
89.174.192.0/19 8.2K
7.8%
T-Mobile Polska S.A. PL Łódź Voivodeship Piotrkow Trybunalski
94.42.64.0/19 8.2K
35.4%
T-Mobile Polska S.A. PL Mazovia Warsaw
94.42.224.0/19 8.2K
71.8%
T-Mobile Polska S.A. PL West Pomerania Szczecin
157.25.0.0/19 8.2K
4.2%
T-Mobile Polska S.A. PL Mazovia Warsaw
178.183.32.0/19 8.2K
99.4%
T-Mobile Polska S.A. PL Greater Poland Leszno
212.38.192.0/19 8.2K
1.2%
T-Mobile Polska S.A. PL
213.158.192.0/19 8.2K
48.0%
T-Mobile Polska S.A. PL
213.218.96.0/19 8.2K
7.0%
T-Mobile Polska S.A. PL
217.153.64.0/19 8.2K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
217.153.160.0/19 8.2K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
78.133.128.0/20 4.1K
24.1%
T-Mobile Polska S.A. PL Mazovia Warsaw
78.133.176.0/20 4.1K
2.0%
T-Mobile Polska S.A. PL Lubusz Zielona Góra
78.133.208.0/20 4.1K
0.8%
T-Mobile Polska S.A. PL Mazovia Słupno
85.219.176.0/20 4.1K
0.0%
T-Mobile Polska S.A. PL
89.174.0.0/20 4.1K
34.5%
T-Mobile Polska S.A. PL Łódź Voivodeship Lubochnia
89.174.48.0/20 4.1K
0.9%
T-Mobile Polska S.A. PL
89.174.80.0/20 4.1K
0.1%
T-Mobile Polska S.A. PL Mazovia Warsaw
89.174.240.0/20 4.1K
4.3%
T-Mobile Polska S.A. PL Łódź Voivodeship Piotrkow Trybunalski
94.42.112.0/20 4.1K
0.6%
T-Mobile Polska S.A. PL Lesser Poland Krakow
94.42.144.0/20 4.1K
78.6%
T-Mobile Polska S.A. PL
94.42.160.0/20 4.1K
0.9%
T-Mobile Polska S.A. PL Mazovia Warsaw
94.42.208.0/20 4.1K
77.8%
T-Mobile Polska S.A. PL West Pomerania Szczecin
157.25.32.0/20 4.1K
10.4%
T-Mobile Polska S.A. PL West Pomerania Szczecin
157.25.176.0/20 4.1K
42.6%
T-Mobile Polska S.A. PL Mazovia Warsaw
178.183.0.0/20 4.1K
99.0%
T-Mobile Polska S.A. PL Lower Silesia Wroclaw
195.94.208.0/20 4.1K
5.8%
T-Mobile Polska S.A. PL Mazovia Warsaw
217.8.176.0/20 4.1K
5.2%
T-Mobile Polska S.A. PL West Pomerania Kołobrzeg
217.153.96.0/20 4.1K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
217.153.128.0/20 4.1K
0.0%
T-Mobile Polska S.A. PL Mazovia Warsaw
78.133.200.0/21 2.0K
1.4%
T-Mobile Polska S.A. PL
78.133.248.0/21 2.0K
1.2%
T-Mobile Polska S.A. PL
85.219.128.0/21 2.0K
0.5%
T-Mobile Polska S.A. PL
85.219.152.0/21 2.0K
0.0%
T-Mobile Polska S.A. PL
85.219.160.0/21 2.0K
49.7%
T-Mobile Polska S.A. PL
85.219.200.0/21 2.0K
3.1%
T-Mobile Polska S.A. PL Mazovia Nowa Wieś
85.219.232.0/21 2.0K
0.2%
T-Mobile Polska S.A. PL
85.219.248.0/21 2.0K
0.2%
T-Mobile Polska S.A. PL
89.174.16.0/21 2.0K
31.1%
T-Mobile Polska S.A. PL
89.174.40.0/21 2.0K
26.1%
T-Mobile Polska S.A. PL Mazovia Stara Iwiczna
89.174.64.0/21 2.0K
23.6%
T-Mobile Polska S.A. PL Mazovia Warsaw
89.174.96.0/21 2.0K
1.2%
T-Mobile Polska S.A. PL
89.174.120.0/21 2.0K
56.5%
T-Mobile Polska S.A. PL
89.174.168.0/21 2.0K
25.3%
T-Mobile Polska S.A. PL
89.174.176.0/21 2.0K
0.2%
T-Mobile Polska S.A. PL
89.174.232.0/21 2.0K
0.1%
T-Mobile Polska S.A. PL
94.42.104.0/21 2.0K
16.0%
T-Mobile Polska S.A. PL Mazovia Lesznowola
94.42.136.0/21 2.0K
1.0%
T-Mobile Polska S.A. PL Lower Silesia Wroclaw
94.42.184.0/21 2.0K
2.5%
T-Mobile Polska S.A. PL Greater Poland Poznan
94.42.200.0/21 2.0K
0.6%
T-Mobile Polska S.A. PL
157.25.48.0/21 2.0K
0.3%
T-Mobile Polska S.A. PL
157.25.152.0/21 2.0K
1.3%
T-Mobile Polska S.A. PL Mazovia Ostrołęka
157.25.160.0/21 2.0K
2.1%
T-Mobile Polska S.A. PL
178.183.24.0/21 2.0K
99.8%
T-Mobile Polska S.A. PL
195.94.192.0/21 2.0K
5.5%
T-Mobile Polska S.A. PL
217.8.160.0/21 2.0K
2.3%
T-Mobile Polska S.A. PL
217.153.144.0/21 2.0K
0.0%
T-Mobile Polska S.A. PL
78.133.148.0/22 1.0K
0.0%
T-Mobile Polska S.A. PL
78.133.156.0/22 1.0K
0.6%
T-Mobile Polska S.A. PL
78.133.160.0/22 1.0K
3.1%
T-Mobile Polska S.A. PL
78.133.172.0/22 1.0K
66.5%
T-Mobile Polska S.A. PL
78.133.192.0/22 1.0K
0.2%
T-Mobile Polska S.A. PL
78.133.224.0/22 1.0K
1.2%
T-Mobile Polska S.A. PL Mazovia Słupno
78.133.232.0/22 1.0K
0.3%
T-Mobile Polska S.A. PL Mazovia Słupno
78.133.240.0/22 1.0K
0.0%
NETPOL Piotr Pruba PL
85.219.136.0/22 1.0K
0.6%
T-Mobile Polska S.A. PL
85.219.144.0/22 1.0K
48.0%
T-Mobile Polska S.A. PL
85.219.168.0/22 1.0K
2.0%
T-Mobile Polska S.A. PL
85.219.196.0/22 1.0K
0.2%
T-Mobile Polska S.A. PL
85.219.220.0/22 1.0K
24.2%
T-Mobile Polska S.A. PL Mazovia Stefanowo
85.219.224.0/22 1.0K
0.6%
T-Mobile Polska S.A. PL
85.219.240.0/22 1.0K
0.5%
T-Mobile Polska S.A. PL
89.174.28.0/22 1.0K
14.3%
T-Mobile Polska S.A. PL
89.174.36.0/22 1.0K
10.5%
T-Mobile Polska S.A. PL
89.174.76.0/22 1.0K
0.6%
T-Mobile Polska S.A. PL
89.174.104.0/22 1.0K
0.6%
T-Mobile Polska S.A. PL
89.174.112.0/22 1.0K
0.0%
T-Mobile Polska S.A. PL
89.174.164.0/22 1.0K
14.0%
T-Mobile Polska S.A. PL
89.174.188.0/22 1.0K
56.3%
T-Mobile Polska S.A. PL
89.174.224.0/22 1.0K
0.0%
T-Mobile Polska S.A. PL
94.42.96.0/22 1.0K
0.0%
T-Mobile Polska S.A. PL Silesia Pszczyna
94.42.128.0/22 1.0K
0.0%
T-Mobile Polska S.A. PL
94.42.180.0/22 1.0K
1.1%
T-Mobile Polska S.A. PL
157.25.60.0/22 1.0K
62.5%
T-Mobile Polska S.A. PL

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12912 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
94.42.175.0/24 58,038 2026-09-10 18:08:04
194.9.68.0/24 45,385 2026-09-10 18:08:22
188.146.192.0/19 39,932 2026-09-10 18:07:52
85.202.56.0/23 37,323 2026-09-10 18:07:51
91.213.239.0/24 37,122 2026-09-10 18:08:22
91.223.23.0/24 36,039 2026-09-10 18:07:51
193.105.75.0/24 35,944 2026-09-10 18:07:48
46.205.240.0/21 35,942 2026-09-10 18:08:22
62.29.128.0/17 35,929 2026-09-10 18:08:22
46.205.216.0/21 35,804 2026-09-10 18:08:22
85.219.128.0/17 35,773 2026-09-10 18:08:22
78.133.128.0/17 35,770 2026-09-10 18:08:22
94.42.0.0/16 35,638 2026-09-10 18:08:22
89.174.0.0/16 35,608 2026-09-10 18:08:22
193.91.6.0/23 35,439 2026-09-10 18:08:22
157.25.0.0/16 35,331 2026-09-10 18:08:22
193.91.1.0/24 35,310 2026-09-10 18:08:22
178.182.0.0/18 34,873 2026-09-10 18:07:51
178.183.0.0/18 34,535 2026-09-10 18:07:51
195.94.192.0/19 33,571 2026-09-10 18:07:51
193.110.80.0/24 33,249 2026-09-10 18:07:48
212.38.192.0/19 33,217 2026-09-10 18:07:51
212.203.128.0/17 33,114 2026-09-10 18:07:51
213.218.96.0/20 33,032 2026-09-10 18:08:22
217.8.160.0/19 32,963 2026-09-10 18:07:51
217.153.0.0/16 32,904 2026-09-10 18:08:22
213.218.112.0/20 32,900 2026-09-10 18:08:22
37.31.128.0/17 32,830 2026-09-10 18:08:37
193.105.242.0/24 32,683 2026-09-10 18:08:22
193.33.42.0/23 32,590 2026-09-10 18:07:51
195.225.69.0/24 32,426 2026-09-10 18:07:32
37.31.0.0/17 18,900 2026-09-10 18:08:04
37.30.0.0/17 17,967 2026-09-10 18:08:04
188.146.128.0/17 17,124 2026-09-10 18:08:09
188.146.64.0/19 17,104 2026-09-10 18:08:26
188.146.128.0/19 16,909 2026-09-10 18:08:09
37.30.32.0/19 16,798 2026-09-10 18:07:52
188.146.0.0/17 16,670 2026-09-10 18:08:44
188.146.0.0/19 16,592 2026-09-10 18:08:44
46.205.192.0/20 16,199 2026-09-10 18:08:07
46.204.0.0/15 15,304 2026-09-10 18:07:45
62.152.128.0/19 15,300 2026-09-10 18:08:07
83.220.96.0/19 15,263 2026-09-10 18:07:45
37.30.0.0/15 15,237 2026-09-10 18:07:45
178.180.0.0/14 15,164 2026-09-10 18:08:07
188.146.0.0/15 15,104 2026-09-10 18:08:07
213.158.192.0/19 15,092 2026-09-10 18:08:07
46.205.224.0/20 7,178 2026-09-10 18:08:22
89.234.238.0/24 1,239 2026-09-04 23:09:59
89.234.240.0/24 1,234 2026-09-04 23:09:59

Showing top 50 of 61 announced prefixes by sample volume.

Frequently Asked Questions

What is AS12912?

AS12912 is an Autonomous System Number assigned to T-Mobile Polska S.A.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS12912 announce?

AS12912 announces 1.09M IPv4 addresses distributed across 190 routed CIDR prefixes. The network is registered in Poland.

Who operates AS12912?

AS12912 is operated by T-Mobile Polska S.A.. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.

What country is AS12912 registered in?

AS12912 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 18:11:07 UTC
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