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Autonomous System details for AS44143

AS44143

A1 Srbija d.o.o. Beograd • a1.rs

AS44143 — A1 Srbija d.o.o. Beograd

AS Name

A1SERBIA-AS

Country

Serbia (RS)

Website

a1.rs

Number of IPv4

26,624

Number of IPv6

7.92 × 10²⁹

ASN type

Business

Status

Allocated

Registry

RIPE

Allocated

November 23, 2007

Last updated

May 14, 2026

IP Ranges

14 IPv4 prefixes, 3 IPv6 prefixes

Prefix	Company	Number of IPs
37.19.104.0/21	A1 Srbija d.o.o. Beograd	2,048
77.243.16.0/20	A1 Srbija d.o.o. Beograd	4,096
95.86.4.0/22	A1 Srbija d.o.o. Beograd	1,024
95.86.8.0/22	A1 Srbija d.o.o. Beograd	1,024
95.86.48.0/21	A1 Srbija d.o.o. Beograd	2,048
95.86.60.0/22	A1 Srbija d.o.o. Beograd	1,024
185.37.24.0/22	A1 Srbija d.o.o. Beograd	1,024
188.120.96.0/20	A1 Srbija d.o.o. Beograd	4,096
188.120.96.0/21	A1 Srbija d.o.o. Beograd	2,048
188.120.104.0/21	A1 Serbia doo	2,048
188.120.112.0/21	A1 Serbia doo	2,048
188.120.112.0/22	A1 Serbia doo	1,024
188.120.116.0/22	A1 Serbia doo	1,024
198.143.176.0/21	A1 Srbija d.o.o. Beograd	2,048
2a00:61c0::/29	A1 Srbija d.o.o. Beograd	6.34 × 10²⁹
2a00:61c0::/32	A1 Srbija d.o.o. Beograd	7.92 × 10²⁸
2a00:61c1::/32	Swarovski	7.92 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS44143

2 peers

AS174 AS31042

AS44143 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS44143

1 upstreams

AS8447

AS44143 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS44143 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS44143

4 downstreams

AS62012 AS205201 AS213008 AS394977

AS44143 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.