TWO SIGMA INVESTMENTS, LP
AS36671 is TWO SIGMA INVESTMENTS, LP (twosigma.com). It announces 3,584 IPv4 addresses in 14 prefixes, and 2 IPv6 prefixes.
United States· ARIN· allocated 2006-03-14· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States2,304 · 64.29%
- United Kingdom1,024 · 28.57%
- Hong Kong256 · 7.14%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TWOSIGMA2
- name
- TWO SIGMA INVESTMENTS, LP
- org
- TSI-21
- org name
- TWO SIGMA INVESTMENTS, LP
- org address
- 100 Avenue of the Americas, 16th Floor, New York, NY, 10013
- org city
- New York
- org country
- US
- country
- US
- source
- arin
- created
- 2006-03-14
- updated
- 2012-10-10
- abuse name
- abuse contact
- abuse email
- abuse@twosigma.com
- abuse phone
- +1-212-625-5700
- abuse kind
- role
- abuse city
- New York
- abuse country
- US
- admin name
- Network Engineering
- admin email
- neteng@twosigma.com
- admin phone
- +1-646-292-6288
- admin kind
- role
- admin city
- New York
- admin country
- US
- tech name
- Network Engineering
- tech email
- neteng@twosigma.com
- tech phone
- +1-646-292-6288
- tech kind
- role
- tech city
- New York
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP340.95%
- anyip0.03%
- None here
- None here
- None here
- None here
- Hosting IP76821.43%
- None here
- None here
- None here
- 0.17%
- SMTP IP140.39%
- 0.25%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 8.2.105.0/24 | United States | not found | 17 | 2026-10-02 |
| 8.245.33.0/24 | United States | not found | 17 | 2026-10-02 |
| 38.27.161.0/24 | United States | not found | 17 | 2026-10-02 |
| 38.97.45.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 38.108.14.0/24 | United States | not found | 17 | 2026-10-02 |
| 38.117.134.0/24 | United States | not found | 17 | 2026-10-02 |
| 46.183.200.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 46.183.201.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 207.226.133.0/24 | Hong Kong | valid | 17 | 2026-10-02 |
| 208.77.212.0/22 | United States | valid | 17 | 2026-10-02 |
| 208.77.212.0/24 | United States | valid | 17 | 2026-10-02 |
| 208.77.213.0/24 | United States | valid | 17 | 2026-10-02 |
| 208.77.214.0/24 | United States | valid | 17 | 2026-10-02 |
| 212.133.79.0/24 | United Kingdom | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2620:106:3000::/40 | United States | valid | 20 | 2026-10-02 |
| 2620:106:3003::/48 | United States | valid | 18 | 2026-10-02 |
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