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Autonomous System

AS15958

CETIN Ltd. Belgrade

Announced IPs
69,632
CIDR prefixes
26
ASN
AS15958

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS15958 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)
0.0.0.0/0 AS15958, AS212271 2026-07-18 10:52:44

Network profile

Source: PeeringDB →
Network type NSP
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record AS-TELENORDOO

Present at 5 internet exchanges: VIX, SOX Serbia, AMS-IX, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, BIX

Web3 footprint

AS15958 hosts 1 observed decentralized-network node across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
109.245.64.0/18 16.4K
92.5%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.128.0/18 16.4K
94.3%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.224.0/19 8.2K
0.4%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.0.0/20 4.1K
58.1%
CETIN Ltd. Belgrade RS
109.245.32.0/20 4.1K
91.8%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.192.0/20 4.1K
6.1%
CETIN Ltd. Belgrade RS Belgrade Belgrade
217.65.192.0/20 4.1K
28.3%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.16.0/21 2.0K
92.5%
CETIN Ltd. Belgrade RS
109.245.208.0/21 2.0K
2.2%
CETIN Ltd. Belgrade RS
109.245.24.0/22 1.0K
91.3%
CETIN Ltd. Belgrade RS Šumadija Opština Aranđelovac
109.245.48.0/22 1.0K
91.7%
CETIN Ltd. Belgrade RS Belgrade Belgrade
109.245.220.0/22 1.0K
8.7%
CETIN Ltd. Belgrade RS
109.106.224.0/23 512
0.0%
CETIN Ltd. Belgrade RS
109.106.238.0/23 512
1.0%
CETIN Ltd. Belgrade RS Nišava Aleksinac
109.245.28.0/23 512
93.8%
CETIN Ltd. Belgrade RS Pčinja Vranje
109.245.52.0/23 512
91.6%
CETIN Ltd. Belgrade RS
109.245.58.0/23 512
89.3%
CETIN Ltd. Belgrade RS
109.245.218.0/23 512
6.3%
CETIN Ltd. Belgrade RS
109.106.227.0/24 256
0.0%
CETIN Ltd. Belgrade RS Nišava Aleksinac
109.106.228.0/24 256
0.0%
CETIN Ltd. Belgrade RS
109.106.231.0/24 256
0.0%
CETIN Ltd. Belgrade RS
109.106.232.0/24 256
0.4%
CETIN Ltd. Belgrade RS
109.245.30.0/24 256
93.0%
CETIN Ltd. Belgrade RS
109.245.54.0/24 256
91.4%
CETIN Ltd. Belgrade RS
109.245.60.0/24 256
93.8%
CETIN Ltd. Belgrade RS
109.245.217.0/24 256
0.0%
CETIN Ltd. Belgrade RS

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS15958 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
109.245.168.0/21 8,911 2026-07-18 10:41:52
109.245.128.0/21 8,901 2026-07-18 10:41:52
217.65.192.0/20 8,604 2026-07-18 10:08:40
109.245.160.0/21 8,584 2026-07-18 10:41:52
109.245.0.0/16 8,547 2026-07-18 10:08:40
109.245.144.0/21 8,330 2026-07-18 10:41:52
109.106.224.0/20 8,060 2026-07-18 10:08:40
217.65.200.0/21 6,733 2026-07-18 09:36:59
217.65.196.0/22 6,292 2026-07-18 09:36:59
217.65.204.0/22 3,286 2026-07-18 10:24:50
217.65.201.0/24 3,244 2026-07-18 10:24:50
217.65.202.0/23 3,212 2026-07-18 10:24:50
109.245.11.0/24 16 2026-07-17 20:50:51
217.65.196.18/31 9 2026-07-14 01:11:47
217.65.196.16/31 9 2026-07-14 01:11:47
217.65.196.86/31 9 2026-07-14 01:11:47
217.65.196.234/31 9 2026-07-14 01:11:47
217.65.196.238/31 9 2026-07-14 01:11:47
109.106.229.210/32 9 2026-07-14 01:11:47
217.65.196.104/31 9 2026-07-14 01:11:47
0.0.0.0/0 6 2026-07-17 20:50:39
109.245.172.0/32 4 2026-07-12 17:56:52

Frequently Asked Questions

What is AS15958?

AS15958 is an Autonomous System Number assigned to CETIN Ltd. Belgrade. 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 AS15958 announce?

AS15958 announces 69.6K IPv4 addresses distributed across 26 routed CIDR prefixes. The network is registered in Serbia.

Who operates AS15958?

AS15958 is operated by CETIN Ltd. Belgrade. The organization is based in Serbia. You can view all IP ranges and related ASNs on the organization page.

What country is AS15958 registered in?

AS15958 is registered in Serbia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 10:40:31 UTC
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