Autonomous System
AS21056 — ASN-WELCOMEITALIA(IT)
Last fetched
AS21056 is an Autonomous System operated by ASN-WELCOMEITALIA and registered in IT. As of Thu, 21 May 2026 14:41:46 GMT, it announces 43 routed IP prefixes and peers with 25 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21056 announces 43 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 45.84.140.0/22
- 45.143.36.0/22
- 45.151.12.0/22
- 45.151.64.0/22
- 46.44.192.0/18
- 78.152.96.0/19
- 79.135.32.0/19
- 80.93.128.0/20
- 80.93.143.0/24
- 83.137.56.0/21
- 87.247.232.0/21
- 87.247.239.0/24
- 91.143.192.0/20
- 91.201.104.0/24
- 91.242.230.0/24
- 94.138.160.0/19
- 103.26.124.0/22
- 103.43.232.0/22
- 103.61.184.0/22
- 103.248.184.0/22
- 109.122.208.0/21
- 144.48.192.0/22
- 185.97.216.0/24
- 185.97.217.0/24
- 185.97.218.0/24
Peering ecosystem
25 distinct peers via BGP. The first 25 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS1299 | TWELVE99 Arelion, fka Telia Carrier | SE |
| AS212024 | RISSON | FR |
| AS211288 | NETASSIST | BG |
| AS210224 | SNAPSYS-AS | IT |
| AS208775 | COMACSPA | IT |
| AS198320 | TELNETSYSTEMS | IT |
| AS61973 | OLEKSANDRA-AS Netassist internal Italy ASN | CZ |
| AS56662 | EUTPNET | PL |
| AS48362 | TKSWF-AS | AT |
| AS47242 | HOST-SPA | IT |
| AS37721 | Virtual-Technologies-Solutions-SA | BF |
| AS34549 | MEER-AS meerfarbig GmbH & Co. KG | DE |
| AS33891 | CORE-BACKBONE CORE-BACKBONE GMBH GLOBAL NETWORK | DE |
| AS29632 | NASSIST-AS | BG |
| AS29390 | CTU-AS | BG |
| AS25091 | IP-MAX IP-Max SA | CH |
| AS20485 | TRANSTELECOM Moscow, Russia | RU |
| AS17639 | CONVERGE-AS Converge ICT Solutions Inc. | PH |
| AS9002 | RETN-AS | GB |
| AS8966 | ETISALAT-AS P.O. Box 1150, Dubai, U | AE |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
| AS6762 | SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. | IT |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
| AS3216 | SOVAM-AS | RU |
| AS1836 | GREEN green.ch AG Autonomous System | CH |
Blast radius
Approximate count of dependent hostnames if AS21056 disappeared from the routing table.
Blast radius: Computing — check back later. The precompute pipeline refreshes this panel within a few days.
MOAS / hijack watch
Prefixes routed by AS21056 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
No active MOAS conflicts. Every prefix announced by AS21056 is unique to AS21056 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS21056.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21056"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.