Data as of Nov 5, 2026
50.144.202.0/24
No anonymizer space · no proxy exits in 30 daysUnited States Holocaust Memorial Museum · space held by Comcast Cable Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 50.128.0.0/9 since Mar 2011 | AS7922 | Residential | 11,485 1,129 always on | Comcast Cable Communications, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 50.128.0.0/9 | 8,388,608 | CCCH3-4 | Comcast Cable Communications, LLC (CCCS) · US | Direct Allocation | Oct 21, 2010 | abuse@ |
| └ 50.144.128.0/17 | 32,768 | BAWA-CCS-2 | Comcast Cable Communications, LLC (CCCS) · US | Reallocated | Aug 22, 2023 | abuse@ |
| └ 50.144.202.0/24 | 256 | UNITED-STATES-HOLOCAUST-MEMORIAL-MUSEUM | United States Holocaust Memorial Museum (C10904288) · US | Reassigned | Jul 18, 2024 | abuse@ via BAWA-CCS-2 |
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
IPv4 market
Holder
- Organization
- Comcast Cable Communications, LLC
- Handle
- CCCS
- Range
- 50.
128. 0. 0/ 9 - Registration type
- Direct Allocation
- Record created
- Oct 21, 2010
Origin network
AS33738
US
- Name
- United States Holocaust Memorial Museum
- Type
- Business
- Registered
- Mar 8, 2005
- Domain
- ushmm.org
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2024
- Current origin since
- Aug 2024 · 2.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 50.144.202.0/24 | AS33738 | /24 | ARIN | RPKI valid |
| 50.144.128.0/17 | AS33657 | /17 | ARIN | Another network |
| 50.128.0.0/9 | AS7922 | /9 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS33738 | RADB | Comcast Cable Communications, Inc. | MAINT-AS7922 | Aug 19, 2024 |
Whois
Registration for this announcement
- Range
- 50.
144. 202. 0/ 24 - Netname
- UNITED-STATES-HOLOCAUST-MEMORIAL-MUSEUM
- Registrant
- United States Holocaust Memorial Museum
- Organization
- United States Holocaust Memorial Museum (C10904288)
- Type
- Reassigned
- Handle
- NET-50-144-202-0-1
- Parent
- NET-50-144-128-0-1
- Created
- Jul 18, 2024
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 21, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
comcast. net - Name
- Network Abuse and Policy Observance
- Phone
- +1-888-565-4329
- Handle
- NAPO-ARIN