AS36671
TWO SIGMA INVESTMENTS, LP
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 →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 208.77.212.0/22 | 1.0K |
14.3%
|
TWO SIGMA INVESTMENTS, LP | US | New York | New York |
| 46.183.200.0/23 | 512 |
0.0%
|
TWO SIGMA INVESTMENTS, LP | GB | — | — |
| 8.2.105.0/24 | 256 |
0.4%
|
TWO SIGMA INVESTMENTS, LP | US | — | — |
| 8.245.33.0/24 | 256 |
0.0%
|
TWO SIGMA INVESTMENTS, LP | US | — | — |
| 38.27.161.0/24 | 256 |
0.0%
|
TWO SIGMA INVESTMENTS, LP | US | New Jersey | Piscataway |
| 38.97.45.0/24 | 256 |
0.0%
|
TWO SIGMA INVESTMENTS, LP | US | — | — |
| 38.108.14.0/24 | 256 |
0.8%
|
TWO SIGMA INVESTMENTS, LP | US | — | — |
| 38.117.134.0/24 | 256 |
16.4%
|
TWO SIGMA INVESTMENTS, LP | US | New York | New York |
| 207.226.133.0/24 | 256 |
2.0%
|
TWO SIGMA INVESTMENTS, LP | HK | — | — |
| 212.133.79.0/24 | 256 |
0.0%
|
TWO SIGMA INVESTMENTS, LP | GB | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS36671 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 |
|---|---|---|
| 208.77.212.0/24 | 15,450 | 2026-08-02 02:32:58 |
| 207.226.133.0/24 | 10,643 | 2026-08-02 02:31:23 |
| 208.77.213.0/24 | 7,922 | 2026-08-02 02:30:44 |
| 38.117.134.0/24 | 7,413 | 2026-08-02 02:30:03 |
| 208.77.212.0/22 | 7,082 | 2026-08-02 02:30:44 |
| 38.108.14.0/24 | 6,904 | 2026-08-02 02:30:03 |
| 38.27.161.0/24 | 6,880 | 2026-08-02 02:29:58 |
| 38.97.45.0/24 | 6,843 | 2026-08-02 02:30:54 |
| 46.183.200.0/24 | 6,776 | 2026-08-02 02:30:54 |
| 46.183.201.0/24 | 6,237 | 2026-08-02 02:32:49 |
| 208.77.214.0/24 | 5,494 | 2026-08-02 02:31:03 |
| 8.2.105.0/24 | 5,130 | 2026-08-02 02:28:24 |
| 8.245.33.0/24 | 3,940 | 2026-08-02 02:32:40 |
| 212.133.79.0/24 | 3,830 | 2026-08-02 02:31:39 |
Frequently Asked Questions
What is AS36671?
AS36671 is an Autonomous System Number assigned to TWO SIGMA INVESTMENTS, LP. 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 AS36671 announce?
AS36671 announces 3.6K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in United States.
Who operates AS36671?
AS36671 is operated by TWO SIGMA INVESTMENTS, LP. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS36671 registered in?
AS36671 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
