Data as of Nov 8, 2026
74.81.156.0/23
No anonymizer space · no proxy exits in 30 daysComcast Cable 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 |
|---|---|---|---|---|---|---|
| 74.81.128.0/19 | 8,192 | COMCAST-HOUSTON | Comcast Cable Communications, LLC (CCCS) · US | Direct Allocation | Aug 12, 2008 | abuse@ |
| └ 74.81.156.0/23 | 512 | COMCAST-HOUSTON | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 74.81.128.0/19
- Prefix
- 74.81.128.0/19
- Announced by
- AS7922 Comcast Cable Communications, LLC
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- COMCAST-HOUSTON
- Registrant
- Comcast Cable Communications, LLC
- RIR
- ARIN
Origin network
AS7922
US
- Name
- Comcast Cable Communications, LLC
- Type
- Internet provider
- Registered
- Feb 14, 1997
- Domain
- comcast.com
- Website
- corporate.comcast.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 74.81.128.0/19
74.81.128.0/19
Routing history
- Pattern
- Reactivated
- First seen
- Sep 2008
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 2
- Last change of origin
- Apr 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 74.81.128.0/19 | AS7922 | /19 | ARIN | RPKI valid |
IRR
Route objects on 74.81.128.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7922 | ARIN | Comcast Cable Communications, LLC | MNT-CCCS | Apr 1, 2026 |
Whois
Registration for this announcement
- Range
- 74.
81. 128. 0/ 19 - Netname
- COMCAST-HOUSTON
- Registrant
- Comcast Cable Communications, LLC
- Organization
- Comcast Cable Communications, LLC (CCCS)
- Org address
- 1800 Bishops Gate Blvd, Mt Laurel, NJ, 08054
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-74-81-128-0-1
- Parent
- NET-74-0-0-0-0
- Created
- Aug 12, 2008
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 12, 2008
- Status
- assigned
Report abuse
Abuse contact
- abuse@
comcast. net - Name
- Network Abuse and Policy Observance
- Phone
- +1-888-565-4329
- Handle
- NAPO-ARIN