asn.dev

Autonomous system

AS21504 BESSEMER-GROUP-INCORPORATED

Unclassified ARIN

IPv4 addresses 4.86K 8 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 9 0 downstream
Flagged prefixes 0 none

Summary

The Bessemer Group

United States of America · AI-generated

business corporate finance

BESSEMER-GROUP-INCORPORATED is held by The Bessemer Group, Inc.

What it's used for

  • The address space carries corporate infrastructure, evidenced by netnames such as NETBLK-BESSEMER and BESSEMER6.
  • The AS announces 4864 IPv4 addresses across 8 prefixes with 9 observed neighbours, a ratio consistent with a business or internal corporate estate rather than a transit provider.

Notable

  • Registrants align with the announcer, including The Bessemer Group, Inc. and Bessemer Trust Company.
  • The inventory consists of a mix of /21, /23, and /24 blocks, all within the 198.160.0.0/16 range.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

9 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS55002F5, Inc.406
AS46887Crown Castle Fiber LLC176
AS174Cogent Communications, LLC141
AS54004Cablevision Lightpath LLC118
AS6461Zayo Bandwidth117
AS3356Level 3 Parent, LLC79
AS46450Pilot Fiber, Inc.72
AS701Verizon Business43

All 9 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 8 prefixes · 4.86K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America8

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21504
Registry name
BESSEMER-GROUP-INCORPORATED
Registrant
The Bessemer Group, Inc.
Abuse contact
techops@bessemer.com
Registered
2014-05-28
Last changed
2014-05-28
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
20% valid · 4 valid, 16 with no ROA
ROAs
4 authorising AS21504
ASPA
no ASPA record
IRR
100% registered · 20 of 20 announcements
Route objects
36 naming AS21504

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check