Data as of Nov 5, 2026
149.51.192.0/24
Anonymizer · ISP proxyRCN · space held by Cogent Communications, LLC
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 149.51.192.0/24 | /24s |
|---|---|---|
| Rackdog | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 149.51.192.0/24 | /24s |
|---|---|---|
| Cogent Communications, LLC | 256100% | 1 |
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | RPKI |
|---|---|---|---|---|---|
| 149.50.0.0/15 since Sep 2006 | AS174 | Internet provider | IP broker Rackdog (part) | 3,357 962 always on |
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 |
|---|---|---|---|---|---|---|
| 149.51.0.0/16 | 65,536 | COGENT-149-51-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Jan 28, 1992 | abuse@ |
| └ 149.51.192.0/18 | 16,384 | RACKDOG-CGNT-NET-12 | RCN (C11605110) · US | Reassigned | May 27, 2026 | abuse@ via COGENT-149-51-16 |
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 149.51.192.0/21
- Prefix
- 149.51.192.0/21
- Announced by
- AS6079 RCN
- Type
- ISP proxy
- Anonymizer addresses
- all
- Leased from
- IP broker Rackdog
- RPKI
- No RPKI
- Netname
- RACKDOG-CGNT-NET-12
- Registrant
- RCN
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 149.
51. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jan 28, 1992
- Legacy
- yes
Origin network
AS6079
US
- Name
- RCN
- Type
- Internet provider
- Registered
- Apr 4, 2001
- Domain
- astound.com
- Website
- www.astound.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
149.51.192.0/21
Routing history
- Pattern
- Rotating
- First seen
- May 2022
- Current origin since
- Jun 2024 · 2.4 yr
- Origin networks
- 4
- Last change of origin
- Jun 2024
Recorded history
History
- Handoffs
- 3
IRR
Route objects on 149.51.192.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6079 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
Whois
Registration for this announcement
- Range
- 149.
51. 192. 0/ 18 - Netname
- RACKDOG-CGNT-NET-12
- Registrant
- RCN
- Organization
- RCN (C11605110)
- Type
- Reassigned
- Handle
- NET-149-51-192-0-1
- Parent
- NET-149-51-0-0-1
- Created
- May 27, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 28, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN