Data as of Nov 7, 2026
206.158.128.0/17
Anonymizer · ISP proxyCogent Communications, LLC
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 206.158.128.0/17 | /24s |
|---|---|---|
| Rackdog | 32,768100% | 128 |
Leased from
Owners leasing their own space
| Name | In 206.158.128.0/17 | /24s |
|---|---|---|
| Cogent Communications, LLC | 32,768100% | 128 |
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 206.158.128.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.144.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.160.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.176.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.192.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.208.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.224.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | |
| 206.158.240.0/20 since Aug 2025 | AS11404 | ISP proxy | IP broker Rackdog | Cogent 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 |
|---|---|---|---|---|---|---|
| 206. | 196,608 | COGC | Cogent Communications, LLC (COGC) · US | Direct Allocation | Oct 6, 1995 | abuse@ |
| └ 206.158.128.0/17 | 32,768 | RACKDOG-CGNT-NET-43 | RCN (C11605238) · US | Reassigned | May 27, 2026 | abuse@ via COGC |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 206.158.0.0/15
- Prefix
- 206.158.0.0/15
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Anonymizer addresses
- 8,192 addresses · 6.3%ISP proxy
- Proxy exits
- 10
- RPKI
- No RPKI
- Netname
- COGC
- 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 206.158.0.0/15
206.158.0.0/15
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Jun 2025 · 1.4 yr
- Origin networks
- 2
- Last change of origin
- Jun 2025
Recorded history
History
- Handoffs
- 1
IRR
Route objects on 206.158.0.0/15
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1239 not the origin | ARIN | 198 Van Buren St | MNT-COGC | Dec 23, 2025 |
Whois
Registration for this announcement
- Range
- 206.
158. 0. 0 - 206. 160. 255. 255 - Netname
- COGC
- 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-206-158-0-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Oct 6, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 6, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN