Autonomous System
AS24971 — MASTER-AS - MasterDC s.r.o.(CZ)
Last fetched
AS24971 is an Autonomous System operated by MASTER-AS - MasterDC s.r.o. and registered in CZ. As of Tue, 04 Aug 2026 05:55:53 GMT, it announces 46 routed IP prefixes and peers with 18 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS24971 announces 46 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 5.180.200.0/22
- 37.140.220.0/24
- 37.205.8.0/22
- 37.205.12.0/22
- 77.93.192.0/19
- 80.79.16.0/20
- 81.31.32.0/20
- 83.167.224.0/19
- 83.223.52.0/24
- 85.118.128.0/21
- 89.185.224.0/19
- 91.213.160.0/24
- 91.214.192.0/22
- 91.216.179.0/24
- 91.226.216.0/22
- 92.63.56.0/24
- 130.193.16.0/24
- 149.62.144.0/21
- 176.227.168.0/23
- 178.238.32.0/20
- 185.8.164.0/23
- 185.8.166.0/23
- 185.25.184.0/22
- 185.32.160.0/22
- 185.58.40.0/22
Peering ecosystem
18 distinct peers via BGP. The first 18 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS1299 | TWELVE99 - Arelion Sweden AB | SE |
| AS15935 | HA-VEL-LOCAL-AS - ha-vel internet s.r.o. | CZ |
| AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | AT |
| AS202857 | CZ-AS - INIZIO Internet Media s.r.o. | CZ |
| AS204957 | GREENFLOID-AS - GREEN FLOID LLC | US |
| AS207167 | amccomp-master-brno - mapnet IT services s.r.o. | CZ |
| AS21045 | QnetCZ - K-net Technical International Group, s.r.o. | CZ |
| AS211085 | amccomp-master-praha - mapnet IT services s.r.o. | CZ |
| AS24482 | SGGS-AS-AP - SG.GS | SG |
| AS29504 | LBCFREE - Freenet Liberec, z.s. | CZ |
| AS33891 | CORE-BACKBONE - Core-Backbone GmbH | DE |
| AS37721 | Virtual Technologies & Solutions - Virtual Technologies & Solutions | BF |
| AS48921 | VEROTEL-AS - Yoursafe Holding B.V. | NL |
| AS50629 | LWLCOM - LWLcom GmbH | DE |
| AS51134 | INTACTO-AS - Development 777 s.r.o. | CZ |
| AS64481 | Dragon-Capital-AS - Joint Venture Dragon Capital LLC | UA |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
| AS9002 | RETN-AS - RETN Limited | GB |
Blast radius
Count of dependent hostnames if AS24971 disappeared from the routing table.
203,197 hostnames depend on this network.Exact count across all 46 announced prefixes. Snapshot Wed, 15 Jul 2026 05:00:38 GMT.
MOAS / hijack watch
Prefixes routed by AS24971 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 AS24971 is unique to AS24971 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS24971.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS24971"})-[: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.