Data as of Nov 12, 2026
205.231.104.0/22
No anonymizer space · no proxy exits in 30 daysD. E. Shaw & Co. LP · reallocated from Verizon Business
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 205.228.0.0/14 since May 2005 | AS701 | Internet provider | 1 | Verizon Business |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 205.231.104.0/24 since Sep 2025 | AS4195 | Business | Verizon Business via D. E. Shaw & Co. LP |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 205.228.0.0/14 | 262,144 | UUNETCBLK228 | Verizon Business (MCICS) · US | Direct Allocation | Apr 14, 1995 | abuse@ |
| └ 205.231.96.0/20 | 4,096 | SHAW-NET-BLK | D. E. Shaw & Co. LP (DESH) · US | Reallocated | Jun 20, 1995 | netadmin@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 768 | 75% | 1 | |
| Residential | 256 | 25% | 1 |
Network & registry
Announced by
Covering announcement 205.231.96.0/20
- Prefix
- 205.231.96.0/20
- Announced by
- AS4195 D. E. Shaw & Co. LP
- Type
- Business
- RPKI
- No RPKI
- Netname
- SHAW-NET-BLK
- Registrant
- D. E. Shaw & Co. LP
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Verizon Business
- Handle
- MCICS
- Range
- 205.
228. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Apr 14, 1995
- Legacy
- yes
- Reallocated to
- D. E. Shaw & Co. LP (DESH)
- Reallocated range
- 205.
231. 96. 0/ 20 - Reallocated
- Jun 20, 1995
Origin network
AS4195
US
- Name
- D. E. Shaw & Co. LP
- Type
- Business
- Registered
- Dec 16, 1994
- Domain
- deshaw.com
- Industry
- Investment, Portfolio Management, Pensions and Funds
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
205.231.96.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on 205.231.96.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4195 | RADB | AS4195 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 205.
231. 96. 0/ 20 - Netname
- SHAW-NET-BLK
- Registrant
- D. E. Shaw & Co. LP
- Organization
- D. E. Shaw & Co. LP (DESH)
- Org address
- Two Manhattan West, 375 9th Ave 52nd Floor, New York, NY, 10001
- Org country
- US
- Type
- Reallocated
- Handle
- NET-205-231-96-0-1
- Parent
- NET-205-228-0-0-1
- Created
- Jun 20, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 14, 1995
- Status
- assigned
Report abuse
Abuse contact
- netadmin@
deshaw. net - Name
- D E Shaw Network Administrators
- Phone
- +1-212-478-0600
- Handle
- DESNA-ARIN