AS21504
The Bessemer Group, Inc.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
AS21504 — global IP footprint
Cities where AS21504 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 198.160.48.0/21 | 2.0K |
0.0%
|
The Bessemer Group, Inc. | US | California | San Francisco |
| 198.160.34.0/23 | 512 |
0.6%
|
The Bessemer Group, Inc. | US | New Jersey | Woodbridge |
| 198.160.38.0/23 | 512 |
0.0%
|
The Bessemer Group, Inc. | US | New York | New York |
| 198.160.42.0/23 | 512 |
0.0%
|
The Bessemer Group, Inc. | US | New Jersey | Edison |
| 198.160.44.0/23 | 512 |
0.0%
|
The Bessemer Group, Inc. | US | Virginia | Ashburn |
| 198.160.37.0/24 | 256 |
0.0%
|
The Bessemer Group, Inc. | US | — | — |
| 198.160.40.0/24 | 256 |
0.0%
|
The Bessemer Group, Inc. | US | New Jersey | Edison |
| 198.160.57.0/24 | 256 |
0.0%
|
The Bessemer Group, Inc. | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21504 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 198.160.57.0/24 | 10,188 | 2026-07-29 18:59:45 |
| 198.160.34.0/24 | 7,776 | 2026-07-29 18:58:55 |
| 198.160.35.0/24 | 7,494 | 2026-07-29 18:59:16 |
| 198.160.40.0/24 | 7,492 | 2026-07-29 18:59:16 |
| 198.160.55.0/24 | 6,815 | 2026-07-29 18:58:58 |
| 198.160.51.0/24 | 6,721 | 2026-07-29 18:58:58 |
| 198.160.50.0/23 | 6,518 | 2026-07-29 18:59:23 |
| 198.160.54.0/24 | 6,348 | 2026-07-29 18:58:51 |
| 198.160.37.0/24 | 6,279 | 2026-07-29 18:59:27 |
| 198.160.45.0/24 | 6,135 | 2026-07-29 18:58:50 |
| 198.160.43.0/24 | 6,131 | 2026-07-29 18:59:23 |
| 198.160.52.0/24 | 5,964 | 2026-07-29 18:58:55 |
| 198.160.50.0/24 | 5,444 | 2026-07-29 18:59:07 |
| 198.160.53.0/24 | 5,144 | 2026-07-29 18:59:16 |
| 198.160.44.0/24 | 5,134 | 2026-07-29 18:59:16 |
| 198.160.42.0/24 | 5,120 | 2026-07-29 18:59:16 |
| 198.160.49.0/24 | 5,115 | 2026-07-29 18:59:16 |
| 198.160.38.0/24 | 5,060 | 2026-07-29 18:59:14 |
| 198.160.39.0/24 | 4,798 | 2026-07-29 18:58:55 |
| 198.160.48.0/24 | 4,020 | 2026-07-29 18:59:30 |
Frequently Asked Questions
What is AS21504?
AS21504 is an Autonomous System Number assigned to The Bessemer Group, Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS21504 announce?
AS21504 announces 4.9K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in United States.
Who operates AS21504?
AS21504 is operated by The Bessemer Group, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS21504 registered in?
AS21504 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
