Home / Prefixes / 2a03:3b40::/40

2a03:3b40::/40 RPKI valid

MasterDC · Updated 21.10.2026 19:15 UTC
Announced IPv6 AS24971 MasterDC CZ Czechia

Network Information

Prefix
2a03:3b40::/40
Network Description:
—
Address range
2a03:3b40:: – 2a03:3b40:ff:ffff:ffff:ffff:ffff:ffff
Size
16,777,216 × /64
Origin AS
AS24971 MasterDC
Organization
MasterDC
AS path
AS208972AS9121AS1299AS24971
Paths seen
1
RPKI
RPKI valid
Location
CZ Czechia
First seen
21.10.2026

RPKI ROAs

ROA prefixMax lengthOrigin ASTrust anchor
2a03:3b40::/40 /40 AS24971 RIPE Matches
None in the routing table.
None in the routing table.
PrefixOrigin ASDescriptionLocationRPKI
5.180.200.0/22 AS24971 CZ RPKI valid
37.140.220.0/24 AS24971 CZ RPKI valid
37.205.8.0/22 AS24971 CZ RPKI valid
37.205.12.0/22 AS24971 CZ RPKI valid
77.93.192.0/19 AS24971 CZ RPKI valid
80.79.16.0/20 AS24971 CZ RPKI valid
81.31.32.0/20 AS24971 CZ RPKI valid
83.167.224.0/19 AS24971 CZ RPKI valid
83.223.52.0/24 AS24971 NL No ROA
85.118.128.0/21 AS24971 CZ RPKI valid
89.185.224.0/19 AS24971 CZ RPKI valid
91.213.160.0/24 AS24971 CZ RPKI valid
91.214.192.0/22 AS24971 CZ RPKI valid
91.216.179.0/24 AS24971 CZ RPKI valid
91.226.216.0/22 AS24971 CZ RPKI valid
92.63.56.0/24 AS24971 NEW TELEKOM, spol. s r.o. CZ RPKI valid
130.193.16.0/24 AS24971 CZ RPKI valid
149.62.144.0/21 AS24971 CZ RPKI valid
176.227.168.0/23 AS24971 Cloud Services - Czech Republic CZ Prague RPKI valid
178.238.32.0/20 AS24971 CZ RPKI valid
185.8.164.0/23 AS24971 CZ RPKI valid
185.8.166.0/23 AS24971 CZ RPKI valid
185.25.184.0/22 AS24971 CZ RPKI valid
185.32.160.0/22 AS24971 CZ RPKI valid
185.58.40.0/22 AS24971 CZ RPKI valid
185.85.164.0/22 AS24971 CZ RPKI valid
185.145.160.0/22 AS24971 CZ RPKI valid
185.239.216.0/22 AS24971 CZ RPKI valid
188.213.234.0/23 AS24971 CZ RPKI valid
188.215.18.0/23 AS24971 CZ RPKI valid
193.169.160.0/23 AS24971 DM RPKI valid
194.145.180.0/22 AS24971 CZ RPKI valid
195.140.252.0/22 AS24971 CZ RPKI valid
2001:678:a50::/48 AS24971 DM RPKI valid
2001:67c:68::/48 AS24971 CZ RPKI valid
2a00:8220::/32 AS24971 CZ RPKI valid
2a00:a5a0::/32 AS24971 CZ RPKI valid
2a01:430::/32 AS24971 CZ RPKI valid
2a03:3b40:100::/40 AS24971 CZ RPKI valid
2a03:3b40:200::/39 AS24971 CZ RPKI valid
2a03:7460::/32 AS24971 CZ RPKI valid
2a04:16c0:200::/48 AS24971 NL RPKI valid
2a07:4880::/29 AS24971 CZ RPKI valid
2a0b:3240::/32 AS24971 CZ RPKI valid
2a0c:6380::/29 AS24971 CZ RPKI valid

Origin AS

Details →
AS
AS24971
Name
MasterDC
Also Known As:
Master Internet
Website
https://www.master.cz
Prefixes
33 IPv4 · 13 IPv6
Peers
8 (1 Upstreams)

Approximate location

GeoLite2

External links

RIPEstat bgp.tools Hurricane Electric IRR Explorer Looking Glass JSON API