AS204457
Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.
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.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 5 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS204457 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.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 188.125.161.0/24 | AS204457, AS214608 | 2026-11-13 08:39:07 |
| 131.222.198.0/24 | AS204457, AS205570 | 2026-11-13 05:39:06 |
| 188.132.206.0/24 | AS204457, AS205570 | 2026-11-13 05:39:06 |
| 188.132.207.0/24 | AS204457, AS205570 | 2026-11-13 05:39:06 |
| 203.202.233.0/24 | AS204457, AS205570 | 2026-11-13 05:39:06 |
Network profile
Source: PeeringDB →Present at 7 internet exchanges: VIX, DE-CIX Istanbul: DE-CIX Istanbul Peering LAN, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, BIX.BG: Main, GNM-IX, AMS-IX, TurkIX Sofia
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS204457 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 131.222.230.0/24 | 248,821 | 2026-11-13 08:29:29 |
| 185.248.12.0/24 | 244,674 | 2026-11-13 08:29:29 |
| 95.141.248.0/24 | 242,086 | 2026-11-13 08:29:29 |
| 185.248.13.0/24 | 240,473 | 2026-11-13 08:29:29 |
| 195.170.186.0/24 | 228,241 | 2026-11-13 08:29:29 |
| 87.121.22.0/24 | 225,153 | 2026-11-13 08:29:29 |
| 45.94.5.0/24 | 218,229 | 2026-11-13 08:29:29 |
| 194.4.153.0/24 | 217,177 | 2026-11-13 08:29:29 |
| 45.94.7.0/24 | 213,192 | 2026-11-13 08:29:29 |
| 188.125.168.0/24 | 181,209 | 2026-11-13 08:29:19 |
| 188.125.163.0/24 | 180,300 | 2026-11-13 08:29:29 |
| 213.134.12.0/24 | 176,016 | 2026-11-13 08:29:19 |
| 94.103.124.0/24 | 137,915 | 2026-11-13 08:29:29 |
| 131.222.231.0/24 | 110,862 | 2026-11-13 08:29:19 |
| 131.222.232.0/24 | 106,478 | 2026-11-13 08:29:19 |
| 131.222.233.0/24 | 102,709 | 2026-11-13 08:29:19 |
| 185.248.15.0/24 | 102,097 | 2026-11-13 08:29:19 |
| 185.248.14.0/24 | 101,643 | 2026-11-13 08:29:19 |
| 45.156.31.0/24 | 78,155 | 2026-11-13 08:29:19 |
| 153.56.226.0/24 | 75,955 | 2026-11-13 08:29:29 |
| 153.56.227.0/24 | 75,576 | 2026-11-13 08:29:29 |
| 45.156.30.0/24 | 70,399 | 2026-11-13 08:29:19 |
| 153.56.208.0/24 | 64,369 | 2026-11-13 08:29:19 |
| 153.56.209.0/24 | 61,974 | 2026-11-13 08:29:19 |
| 185.165.77.0/24 | 25,412 | 2026-07-13 06:46:20 |
| 185.165.78.0/24 | 25,219 | 2026-07-13 06:46:20 |
| 153.56.242.0/24 | 19,142 | 2026-11-13 08:29:19 |
| 153.56.243.0/24 | 18,652 | 2026-11-13 08:29:19 |
| 45.156.30.0/23 | 3,542 | 2026-09-30 18:20:53 |
| 188.125.161.0/24 | 344 | 2026-11-13 01:46:31 |
| 188.132.207.0/24 | 250 | 2026-11-12 05:48:50 |
| 203.202.233.0/24 | 143 | 2026-11-12 05:48:45 |
| 188.132.206.0/24 | 133 | 2026-11-12 05:48:50 |
| 131.222.198.0/24 | 121 | 2026-11-12 05:48:44 |
| 193.203.0.0/23 | 20 | 2026-06-21 12:46:35 |
Frequently Asked Questions
What is AS204457?
AS204457 is an Autonomous System Number assigned to Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.. 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 AS204457 announce?
AS204457 announces 6.7K IPv4 addresses distributed across 17 routed CIDR prefixes. The network is registered in Türkiye.
Who operates AS204457?
AS204457 is operated by Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.. The organization is based in Türkiye. You can view all IP ranges and related ASNs on the organization page.
What country is AS204457 registered in?
AS204457 is registered in Türkiye. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
