Data as of Nov 10, 2026
50.144.16.0/24
3 residential-proxy exits · 30 daysUniversity of Tennessee Medical Center · space held by Comcast Cable Communications, LLC
Residential-proxy exits
Proxy exits
3
1.2% of its addresses · 30 days
Providers
20
selling exits here
Oct 11, 2026 – Nov 8, 2026
Exits seen per day
142 observations
Proxy providers listing exits
- AnyIP
- B2Proxy
- BottingTools
- Byteful
- FLEETPROXY
- FastProxy
- FloppyData
- GloryCloud
- IPFly
- IPPeak
- LemonBright
- LudaxProxy
- NovaProxy
- PROXYSCRAPE
- ProxyEmpire
- PuraRoute
- RainProxy
- RoamProxy
- Thordata
- ZENPROXY_LITE
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 50.128.0.0/9 since Mar 2011 | AS7922 | Residential | 11,549 1,142 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@ |
| └ 50.144.16.0/20 | 4,096 | KNOXVILLE-CCS-2 | Comcast Cable Communications, LLC (CCCS) · US | Reallocated | Aug 28, 2023 | abuse@ |
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
AS46512
US
- Name
- University of Tennessee Medical Center
- Type
- Business
- Registered
- Oct 7, 2008
- Domain
- utmedicalcenter.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2023
- Current origin since
- Aug 2024 · 2.2 yr
- Origin networks
- 2
- Last change of origin
- Aug 2024
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 50.144.16.0/24 | AS22909 | /24 | ARIN | Another network |
| 50.144.16.0/24 | AS46512 | /24 | ARIN | RPKI valid |
| 50.144.16.0/20 | AS22909 | /20 | 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 |
|---|---|---|---|---|
| AS46512 | ARIN | Comcast Cable Communications, Inc. | MNT-CCCS | Jul 24, 2024 |
Whois
Registration for this announcement
- Range
- 50.
144. 16. 0/ 20 - Netname
- KNOXVILLE-CCS-2
- 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
- Reallocated
- Handle
- NET-50-144-16-0-1
- Parent
- NET-50-128-0-0-1
- Created
- Aug 28, 2023
- 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