AS16857 Central Texas Telecommunications
AS16857 (CENTEX) is registered to Central Texas Telecommunications in US. It originates 29 prefixes in the global routing table.
Who holds AS16857
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS16857 announces
Prefixes originated by AS16857 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
RPKI valid RPKI invalid no ROA covers it
Who AS16857 is reached through
The AS just before AS16857 in the paths our looking glass collectors hold, for 29 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Provider authorization
AS16857 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.
The 1 ASes that name AS16857 as a provider
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
Route objects with origin AS16857: ARIN 41 · RADB 1