AS31747
BlackRock Financial Management, Inc.
ARIN US active Announced
More ASNs in the United States → Organization
BlackRock Financial Management, Inc.
BLACKROCK-FINANCIAL-MANAGEMENT-2
Registered
Jan 24, 2007
19 years ago
IPv4 Prefixes
26
6,912 addresses
IPv6 Prefixes
0
BGP Neighbours
10
10 upstream/peer · 0 downstream
Registration
AS Number AS31747 AS Name BLACKROCK-FINANCIAL-MANAGEMENT-2 Organization BlackRock Financial Management, Inc. Organization ID BFML Address 50 Hudson Yards, New York, NY, 10001, United States Country United States (US) Registry ARIN Allocated Jan 24, 2007 Record Created Jan 24, 2007 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description BLACKROCK-FINANCIAL-MANAGEMENT-2 - BlackRock Financial Management, Inc., US Abuse Email [email protected] Abuse Phone +1-212-810-3788 IPv4 Prefixes
26 prefixes · 6,912 addresses Routing data as of 2026-10-07 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 69.52.2.0/24 | 69.52.2.0 – 69.52.2.255 | 256 |
| 69.52.3.0/24 | 69.52.3.0 – 69.52.3.255 | 256 |
| 69.52.12.0/24 | 69.52.12.0 – 69.52.12.255 | 256 |
| 69.52.13.0/24 | 69.52.13.0 – 69.52.13.255 | 256 |
| 69.52.14.0/24 | 69.52.14.0 – 69.52.14.255 | 256 |
| 69.52.22.0/24 | 69.52.22.0 – 69.52.22.255 | 256 |
| 69.52.23.0/24 | 69.52.23.0 – 69.52.23.255 | 256 |
| 69.52.33.0/24 | 69.52.33.0 – 69.52.33.255 | 256 |
| 69.52.66.0/24 | 69.52.66.0 – 69.52.66.255 | 256 |
| 69.52.67.0/24 | 69.52.67.0 – 69.52.67.255 | 256 |
| 69.52.68.0/24 | 69.52.68.0 – 69.52.68.255 | 256 |
| 69.52.69.0/24 | 69.52.69.0 – 69.52.69.255 | 256 |
| 69.52.72.0/24 | 69.52.72.0 – 69.52.72.255 | 256 |
| 69.52.73.0/24 | 69.52.73.0 – 69.52.73.255 | 256 |
| 69.52.134.0/24 | 69.52.134.0 – 69.52.134.255 | 256 |
| 69.52.135.0/24 | 69.52.135.0 – 69.52.135.255 | 256 |
| 69.52.136.0/24 | 69.52.136.0 – 69.52.136.255 | 256 |
| 69.52.142.0/24 | 69.52.142.0 – 69.52.142.255 | 256 |
| 69.52.143.0/24 | 69.52.143.0 – 69.52.143.255 | 256 |
| 69.52.144.0/24 | 69.52.144.0 – 69.52.144.255 | 256 |
| 69.52.145.0/24 | 69.52.145.0 – 69.52.145.255 | 256 |
| 69.52.147.0/24 | 69.52.147.0 – 69.52.147.255 | 256 |
| 199.242.0.0/23 | 199.242.0.0 – 199.242.1.255 | 512 |
| 199.242.4.0/24 | 199.242.4.0 – 199.242.4.255 | 256 |
| 199.242.5.0/24 | 199.242.5.0 – 199.242.5.255 | 256 |
| 199.242.6.0/24 | 199.242.6.0 – 199.242.6.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
10 unique neighbours · 10 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (10)
AS Name AS paths IPv4 sightings IPv6 sightings AS8220 COLT COLT Technology Services Group Limited 509 1,555 0 AS3356 LEVEL3 - Level 3 Parent, LLC 313 519 0 AS701 UUNET - Verizon Business 295 526 0 AS32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc. 281 5,082 0 AS4637 ASN-TELSTRA-GLOBAL - Telstra Global 221 290 0 AS9255 CONNECTPLUS-AS - Singapore Telecom 219 532 0 AS174 COGENT-174 - Cogent Communications, LLC 171 211 0 AS11351 TWC-11351-NORTHEAST - Charter Communications Inc 143 193 0 AS2516 KDDI - KDDI CORPORATION 142 163 0 AS10021 KVH - KVH Co.,Ltd 98 160 0
Raw RDAP Response
{
"endAutnum": 31747,
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{
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"eventDate": "2025-11-30T06:15:57-05:00"
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{
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}
],
"handle": "HUSHE3-ARIN",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
},
{
"href": "https://whois.arin.net/rest/poc/HUSHE3-ARIN",
"rel": "alternate",
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"value": "https://rdap.arin.net/registry/autnum/31747"
}
],
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{
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}
],
"handle": "NETWO8337-ARIN",
"links": [
{
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"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
},
{
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[
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[
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[
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[
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[
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"text",
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[
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},
"text",
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},
{
"events": [
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"eventDate": "2026-07-29T12:03:26-04:00"
},
{
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"eventDate": "2016-04-06T15:33:27-04:00"
}
],
"handle": "CHADH1-ARIN",
"links": [
{
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"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
},
{
"href": "https://whois.arin.net/rest/poc/CHADH1-ARIN",
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"value": "https://rdap.arin.net/registry/autnum/31747"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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"status": [
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"vcardArray": [
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[
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{},
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],
[
"fn",
{},
"text",
"REDACTED"
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[
"kind",
{},
"text",
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},
{
"events": [
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"eventDate": "2026-07-29T12:03:41-04:00"
},
{
"eventAction": "registration",
"eventDate": "2017-10-19T11:16:08-04:00"
}
],
"handle": "ARINC56-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ARINC56-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
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{
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[
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"text",
[
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[
"fn",
{},
"text",
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[
"org",
{},
"text",
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[
"kind",
{},
"text",
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[
"email",
{},
"text",
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[
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{
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},
"text",
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],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-04-28T08:45:51-04:00"
},
{
"eventAction": "registration",
"eventDate": "1994-04-21T00:00:00-04:00"
}
],
"handle": "BFML",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
},
{
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[
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"text",
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[
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{
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"text",
[
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[
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],
"events": [
{
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"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2007-01-24T16:01:05-05:00"
}
],
"handle": "AS31747",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/31747",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31747"
},
{
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"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/31747"
}
],
"name": "BLACKROCK-FINANCIAL-MANAGEMENT-2",
"notices": [
{
"description": [
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],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/31747"
}
],
"title": "Terms of Service"
},
{
"description": [
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],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/31747"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
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],
"startAutnum": 31747,
"status": [
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]
} Contact details of private individuals are redacted.