Data as of Nov 5, 2026
207.31.123.0/24
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
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 |
|---|---|---|---|---|---|---|
| 207.31.64.0/18 | 16,384 | COGENT-207-31-64-18 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Jan 23, 1996 | abuse@ |
| └ 207.31.123.0/24 | 256 | COGC-207-31-123-0-1 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 207.31.64.0/18
- Prefix
- 207.31.64.0/18
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- COGENT-207-31-64-18
- Registrant
- Cogent Communications, LLC
- RIR
- ARIN
Origin network
AS174
US
- Name
- Cogent Communications, LLC
- Type
- Internet provider
- Registered
- May 16, 1996
- Domain
- cogentco.com
- Website
- www.cogentco.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1,658
Routing timeline
Who has announced 207.31.64.0/18
207.31.64.0/18
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 207.31.64.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS174 | RADB | Cogent | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 207.
31. 64. 0/ 18 - Netname
- COGENT-207-31-64-18
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-207-31-64-0-1
- Parent
- NET-207-0-0-0-0
- Created
- Jan 23, 1996
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 23, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN