AS18438 Brown Brothers Harriman & Company 🇺🇸 US
Announcing 20 prefixes, seen at the RIS collectors.
IPv4 prefixes
20
5,120 (20 × /24)
IPv6 prefixes
0
-
Upstreams
9
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS18438
- Name
- Brown Brothers Harriman & Company
- Organisation
- Brown Brothers Harriman & Company
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2000-08-29
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS3356 Lumen (Level 3) | 🇺🇸 US | 70,651 | 2,072 | 66 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 65,739 | 4,017 | 82 | CAIDA |
| AS6461 Zayo Bandwidth | 🇺🇸 US | 50,539 | 212 | 26 | CAIDA |
| AS8220 COLT | 🇬🇧 GB | 44,669 | 153 | 16 | CAIDA |
| AS2516 KDDI Corporation | 🇯🇵 JP | 21,745 | 560 | 42 | CAIDA |
| AS55002 F5, Inc. | 🇺🇸 US | 20,200 | 143 | 451 | CAIDA |
| AS46887 Zayo (fka. Crown Castle) | 🇺🇸 US | 1,408 | 800 | 80 | CAIDA |
| AS9141 P4 Sp. z o.o. | 🇵🇱 PL | 531 | 76 | 18 | CAIDA |
| AS54004 Cablevision Lightpath LLC | 🇺🇸 US | 404 | 316 | 51 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
Downstreams
Networks this one appears to provide transit to
No downstreams observed at the collectors.
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.