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Autonomous System

AS203877

Astra Telekom Doo Beograd

Announced IPs
14,592
CIDR prefixes
21
ASN
AS203877

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.

70/100
Moderate
How this score is built

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

Network profile

Source: PeeringDB →
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Open
IRR record RIPE::AS203877

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS203877 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
85.202.125.0/24 50,648 2026-07-24 13:54:23
109.94.119.0/24 33,256 2026-07-24 13:53:42
85.202.122.0/24 26,889 2026-07-24 13:54:23
62.240.5.0/24 17,719 2026-07-24 13:54:23
62.240.13.0/24 16,203 2026-07-24 14:19:59
62.240.17.0/24 15,668 2026-07-24 13:53:44
62.240.16.0/24 14,291 2026-07-24 14:33:23
85.202.112.0/24 12,717 2026-07-24 14:19:59
185.118.170.0/24 12,135 2026-07-24 14:21:30
62.240.1.0/24 11,583 2026-07-24 14:19:59
62.240.2.0/24 11,220 2026-07-24 14:19:59
85.202.121.0/24 10,997 2026-07-24 13:54:20
185.118.171.0/24 10,995 2026-07-24 13:54:20
62.240.3.0/24 10,980 2026-07-24 13:54:23
85.202.127.0/24 10,968 2026-07-24 13:54:20
185.118.169.0/24 10,956 2026-07-24 13:54:20
62.240.12.0/24 10,922 2026-07-24 13:54:20
62.240.8.0/22 10,890 2026-07-24 13:54:20
85.202.113.0/24 10,846 2026-07-24 13:53:42
62.240.19.0/24 10,716 2026-07-24 13:53:42
91.226.242.0/24 10,602 2026-07-24 13:53:42
85.202.114.0/24 10,395 2026-07-24 13:53:57
178.22.218.0/24 10,257 2026-07-24 13:53:57
62.240.18.0/24 10,145 2026-07-24 13:53:44
178.22.219.0/24 9,965 2026-07-24 14:21:30
62.240.15.0/24 9,922 2026-07-24 13:54:23
109.94.224.0/22 9,856 2026-07-24 14:19:59
85.202.115.0/24 9,748 2026-07-24 14:19:59
85.202.126.0/24 9,731 2026-07-24 13:53:42
85.202.118.0/24 9,721 2026-07-24 14:19:59
178.22.221.0/24 9,709 2026-07-24 13:54:23
178.22.222.0/24 9,644 2026-07-24 13:54:23
178.22.220.0/24 9,605 2026-07-24 14:21:30
178.22.223.0/24 9,578 2026-07-24 13:54:23
109.94.120.0/22 9,555 2026-07-24 14:19:59
85.202.120.0/24 9,550 2026-07-24 13:54:23
178.22.217.0/24 9,464 2026-07-24 13:54:23
178.22.216.0/24 9,269 2026-07-24 14:21:29
91.226.243.0/24 9,215 2026-07-24 13:54:20
62.240.7.0/24 8,688 2026-07-24 14:19:59
62.240.0.0/24 8,592 2026-07-24 13:54:25
185.102.236.0/22 8,517 2026-07-24 13:54:22
185.118.168.0/24 8,471 2026-07-24 13:54:24
91.226.241.0/24 8,470 2026-07-24 13:53:42
91.226.240.0/24 8,467 2026-07-24 13:53:42

Frequently Asked Questions

What is AS203877?

AS203877 is an Autonomous System Number assigned to Astra Telekom Doo Beograd. 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 AS203877 announce?

AS203877 announces 14.6K IPv4 addresses distributed across 21 routed CIDR prefixes. The network is registered in Serbia.

Who operates AS203877?

AS203877 is operated by Astra Telekom Doo Beograd. The organization is based in Serbia. You can view all IP ranges and related ASNs on the organization page.

What country is AS203877 registered in?

AS203877 is registered in Serbia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 15:40:31 UTC
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