ResearchRouting table, RPKI, IRR & looking glass

AS15457 NOS Madeira Comunicacoes, S.A.

AS15457 (NOS_MADEIRA) is registered to NOS Madeira Comunicacoes, S.A. in PT. It originates 9 prefixes in the global routing table.

8
IPv4 prefixes
1
IPv6 prefixes
69,632
IPv4 addresses
100%
RPKI valid

Who holds AS15457

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS15457
Handle
NOS_MADEIRA
Organization
NOS Madeira Comunicacoes, S.A.
Country
PT
ASPA
None published

What AS15457 announces

Prefixes originated by AS15457 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
8
IPv6 prefixes
1
IPv4 addresses
69,632 (272 /24s)
RPKI valid
9 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS15457
12
With an IRR route object
9 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS15457 is reached through

The AS just before AS15457 in the paths our looking glass collectors hold, for 9 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPENOS_MADEIRARIPE-NCC-END-MNT, AS15457-MNT

Route objects with origin AS15457: RIPE 12

as-sets that list AS15457 (5)