AS31747 BlackRock Financial Management, Inc. 🇺🇸 US
Announcing 26 prefixes, seen at the RIS collectors.
IPv4 prefixes
26
6,912 (27 × /24)
IPv6 prefixes
0
-
Upstreams
12
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
- AS31747
- Name
- BlackRock Financial Management, Inc.
- Organisation
- BlackRock Financial Management, Inc.
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2007-01-24
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 | 70,977 | 2,083 | 72 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 65,558 | 3,987 | 28 | CAIDA |
| AS701 Verizon Business | 🇺🇸 US | 55,400 | 958 | 66 | CAIDA |
| AS8220 COLT | 🇬🇧 GB | 46,793 | 155 | 159 | CAIDA |
| AS4637 Telstra International Limited | 🇭🇰 HK | 42,371 | 667 | 35 | CAIDA |
| AS2516 KDDI Corporation | 🇯🇵 JP | 21,971 | 560 | 25 | CAIDA |
| AS7474 SingTel Optus Pty Ltd | 🇦🇺 AU | 21,366 | 158 | 20 | CAIDA |
| AS703 Verizon Business - APAC | 🇺🇸 US | 20,007 | 45 | 22 | CAIDA |
| AS32787 Akamai (Prolexic) | 🇺🇸 US | 7,522 | 306 | 559 | CAIDA |
| AS11351 Charter Communications Inc | 🇺🇸 US | 114 | 130 | 23 | CAIDA |
| AS9255 Singapore Telecom | 🇸🇬 SG | 32 | 39 | 78 | CAIDA |
| AS10021 KVH Co.,Ltd | 🇯🇵 JP | 19 | 45 | 13 | 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.