LAYER3 INTEL
Get started
Sign in
Data as of Nov 5, 2026

172.81.4.0/24

No anonymizer space · no proxy exits in 30 days

Btig LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS30417
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
172.81.4.0/22
since May 2021
AS30417BusinessBtig LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
172.81.4.0/221,024BTIG-LLCBtig LLC (BL-1045) · USDirect AllocationMay 3, 2021amui@btig.com
└ 172.81.4.0/24256NY2-COLOBtig LLC (C11173828) · USReassignedApr 16, 2025amui@btig.com
via BTIG-LLC

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Btig LLC
Handle
BL-1045
Range
172.81.4.0/22
Registration type
Direct Allocation
Record created
May 3, 2021
Origin network

AS30417

US
Name
Btig LLC
Type
Business
Registered
Oct 3, 2003
Domain
btig.com
Industry
Community Groups and Nonprofits
Spamhaus ASN-DROP
not listed