AS3300 British Telecommunications Limited
AS3300 (BT) is registered to British Telecommunications Limited in GB. It originates 152 prefixes in the global routing table.
Who holds AS3300
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS3300 announces
Prefixes originated by AS3300 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.
Show 3 more
RPKI valid RPKI invalid no ROA covers it
Who AS3300 is reached through
The AS just before AS3300 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.
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| RIPE | BT | RIPE-NCC-END-MNT, CIP-MNT |
Route objects with origin AS3300: REACH 229 · APNIC 203 · ARIN 140 · NTTCOM 13 · LEVEL3 12 · RADB 10 · RIPE 7 · ALTDB 1