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Autonomous System details for AS21101

AS21101
Sistemi Hardware&Software S.P.A. • unonet.it

AS21101 — Sistemi Hardware&Software S.P.A.

AS Name
SISTEMIUNO-AS
Country
Italy (IT)
Website
Number of IPv4
5,120
Number of IPv6
0
ASN type
ISP
Status
Allocated
Registry
RIPE
Allocated
March 26, 2002
Last updated
March 05, 2025

IP Ranges

20 IPv4 prefixes
Prefix Company Number of IPs
91.240.230.0/24 Sistemi Hardware&Software S.P.A. 256
91.240.231.0/24 Sistemi Hardware&Software S.P.A. 256
94.143.96.0/24 Sistemi Hardware&Software S.P.A. 256
94.143.97.0/24 Single IP xDSL customers 256
94.143.98.0/24 Sistemi Hardware&Software S.P.A. 256
94.143.100.0/24 Sistemi Hardware&Software S.P.A. 256
94.143.101.0/24 COMUNE DI FROSSASCO 256
94.143.102.0/24 Sistemi Hardware&Software S.P.A. 256
94.143.103.0/24 ALMA S.P.A. 256
185.5.94.0/24 Sistemi Hardware&Software S.P.A. 256
185.5.95.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.32.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.33.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.34.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.35.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.36.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.37.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.38.0/24 Sistemi Hardware&Software S.P.A. 256
193.109.39.0/24 Sistemi Hardware&Software S.P.A. 256
193.150.112.0/24 SATIZ TECHNICAL PUBLISHING & MULTIMEDIA S.R.L. 256

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 AS21101

44 peers
AS3303 AS1828 AS2027 AS4455 AS5405 AS6939 AS8218 AS8298 AS8660 AS9009 AS12637 AS13237 AS15547 AS15605 AS16347 AS20764 AS24482 AS29075 AS30781 AS34019 AS34177 AS34224 AS35280 AS35600 AS39120 AS39351 AS49434 AS49544 AS49605 AS49709 AS50628 AS50877 AS56987 AS57111 AS58308 AS58511 AS59919 AS132337 AS198385 AS199524 AS212483 AS37721 AS51185 AS137409

AS21101 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 AS21101

2 upstreams
AS12779 AS41327

AS21101 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS21101 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS21101

2 downstreams
AS13060 AS44091

AS21101 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.

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