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Autonomous System

AS43674

AlterTEL Sp. z o.o.

Announced IPs
512
CIDR prefixes
2
ASN
AS43674

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
91.198.100.0/24 256
0.0%
AlterTEL Sp. z o.o. PL
193.43.90.0/24 256
0.0%
AlterTEL Sp. z o.o. PL

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS43674 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
193.43.90.0/24 6,213 2026-07-29 11:37:09
91.198.100.0/24 6,194 2026-07-29 11:37:09

Frequently Asked Questions

What is AS43674?

AS43674 is an Autonomous System Number assigned to AlterTEL Sp. z o.o.. 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 AS43674 announce?

AS43674 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Poland.

Who operates AS43674?

AS43674 is operated by AlterTEL Sp. z o.o.. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.

What country is AS43674 registered in?

AS43674 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-29 12:55:31 UTC
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