AS21730 Halstad Telephone Company
AS21730 (RRV-NET) is registered to Halstad Telephone Company in US. It originates 33 prefixes in the global routing table.
Who holds AS21730
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS21730 announces
Prefixes originated by AS21730 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 AS21730 is reached through
The AS just before AS21730 in the paths our looking glass collectors hold, for 33 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Provider authorization
AS21730 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.
The 1 ASes that name AS21730 as a provider
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| ARIN | HTC-AUT-NUM | MNT-HALSTA |
Route objects with origin AS21730: ARIN 3