ResearchRouting table, RPKI, IRR & looking glass

AS18596 Madison Telephone Company

AS18596 (MADISONTELCO) is registered to Madison Telephone Company in US. It originates 8 prefixes in the global routing table.

7
IPv4 prefixes
1
IPv6 prefixes
12,288
IPv4 addresses
0%
RPKI valid

Who holds AS18596

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

AS number
AS18596
Handle
MADISONTELCO
Organization
Madison Telephone Company
Country
US
ASPA
None published

What AS18596 announces

Prefixes originated by AS18596 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
1
IPv4 addresses
12,288 (48 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
8
ROAs naming AS18596
1
With an IRR route object
2 25%

Announced prefixes

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

Who AS18596 is reached through

The AS just before AS18596 in the paths our looking glass collectors hold, for 8 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
ARINMADISON COMMUNICATIONSMNT-MADT

Route objects with origin AS18596: ARIN 3

as-sets that list AS18596 (6)