ResearchRouting table, RPKI, IRR & looking glass

AS37133 Airtel Tanzania

AS37133 is registered to Airtel Tanzania in TZ. It originates 73 prefixes in the global routing table.

72
IPv4 prefixes
1
IPv6 prefixes
64,256
IPv4 addresses
0%
RPKI valid

Who holds AS37133

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

AS number
AS37133
Handle
Airtel Tanzania
Organization
Airtel Tanzania
Country
TZ
ASPA
None published

What AS37133 announces

Prefixes originated by AS37133 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
72
IPv6 prefixes
1
IPv4 addresses
64,256 (251 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
73
ROAs naming AS37133
0
With an IRR route object
2 2%

Who AS37133 is reached through

The AS just before AS37133 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS37133 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.

The 1 ASes that name AS37133 as a provider