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Autonomous System details for AS21283

AS21283

A1 Slovenija telekomunikacijske storitve,d.d. • a1.si

AS21283 — A1 Slovenija telekomunikacijske storitve,d.d.

AS Name

A1SI-AS

Country

Slovenia (SI)

Website

a1.si

Number of IPv4

329,728

Number of IPv6

7.13 × 10²⁹

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

September 20, 2002

Last updated

June 11, 2026

IP Ranges

18 IPv4 prefixes, 2 IPv6 prefixes

Prefix	Company	Number of IPs
46.122.0.0/15	A1 Slovenija telekomunikacijske storitve,d.d.	131,072
46.122.64.0/21	A1 Slovenija d.d.	2,048
46.122.96.0/21	A1 Slovenija d.d.	2,048
46.164.0.0/18	A1 Slovenija telekomunikacijske storitve,d.d.	16,384
62.84.224.0/20	A1 Slovenija telekomunikacijske storitve,d.d.	4,096
80.95.224.0/20	A1 Slovenija telekomunikacijske storitve,d.d.	4,096
85.10.0.0/19	A1 Slovenija d.d.	8,192
85.10.32.0/20	A1 Slovenija telekomunikacijske storitve,d.d.	4,096
90.157.128.0/17	A1 Slovenija d.d.	32,768
92.37.0.0/17	A1 Slovenija telekomunikacijske storitve,d.d.	32,768
94.127.24.0/21	A1 Slovenija telekomunikacijske storitve,d.d.	2,048
109.239.176.0/20	A1 Slovenija telekomunikacijske storitve,d.d.	4,096
146.212.0.0/16	A1 Slovenija telekomunikacijske storitve,d.d.	65,536
185.28.8.0/22	A1 Slovenija telekomunikacijske storitve,d.d.	1,024
185.173.52.0/22	A1 Slovenija telekomunikacijske storitve,d.d.	1,024
188.64.24.0/21	A1 Slovenija telekomunikacijske storitve,d.d.	2,048
212.18.32.0/19	A1 Slovenija d.d.	8,192
213.157.224.0/19	A1 Slovenija telekomunikacijske storitve,d.d.	8,192
2001:15c0::/29	A1 Slovenija telekomunikacijske storitve,d.d.	6.34 × 10²⁹
2a00:1a20::/32	A1 Slovenija telekomunikacijske storitve,d.d.	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 AS21283

8 peers

AS1853 AS6939 AS3303 AS39120 AS263444 AS28682 AS132337 AS212483

AS21283 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 AS21283

2 upstreams

AS8447 AS43061

AS21283 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS21283 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS21283

33 downstreams

AS15822 AS25059 AS25066 AS25467 AS28850 AS29051 AS31687 AS34367 AS39727 AS41505 AS41970 AS42473 AS44968 AS47917 AS47993 AS48419 AS48772 AS48894 AS49659 AS57517 AS196846 AS196895 AS197391 AS197907 AS198061 AS198524 AS198827 AS199612 AS201395 AS203618 AS210197 AS213115 AS214296

AS21283 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.