Data as of Nov 13, 2026
208.53.211.0/24
1 residential-proxy exit · 30 daysSDN Communications
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
19
selling exits here
Oct 14, 2026 – Nov 12, 2026
Exits seen per day
24 observations
Proxy providers listing exits
- BuyingProxy
- ByteProxies
- Byteful
- ColaProxy
- Datarama
- EZProxies
- Evomi
- FloppyData
- GSocks
- Geonix
- Geonode
- Infatica
- InfiniteProxies
- MangoProxy
- NodeProxy
- NovaProxy
- Proxy-Seller
- ProxyGeo
- Shifter
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.53.192.0/18 since Sep 2005 | AS13576 | Residential | 120 8 always on | SDN Communications |
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 |
|---|---|---|---|---|---|---|
| 208.53.192.0/18 | 16,384 | SDN-208-53-192-0 | SDN Communications (SDN) · US | Direct Allocation | Jul 12, 2004 | arin. |
| └ 208.53.211.0/24 | 256 | MT-RUSHMORE-TELEPHONE-CO | Mt. Rushmore Telephone Co. (C11683335) · US | Reassigned | Aug 17, 2026 | arin. via SDN-208-53-192-0 |
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
Registry
Holder
- Organization
- SDN Communications
- Handle
- SDN
- Range
- 208.
53. 192. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Jul 12, 2004
Origin network
AS13576
US
- Name
- SDN Communications
- Type
- Internet provider
- Registered
- Jul 8, 1999
- Domain
- sdncommunications.com
- Website
- www.sdncommunications.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2019
- Current origin since
- Oct 2019 · 7.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 208.53.211.0/24 | AS13576 | /24 | ARIN | RPKI valid |
| 208.53.192.0/18 | AS13576 | /18 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13576 | ARIN | SDN Communications customer Mt Rushmore Tel | MNT-SDN | Nov 22, 2024 |
Whois
Registration for this announcement
- Range
- 208.
53. 211. 0/ 24 - Netname
- MT-RUSHMORE-TELEPHONE-CO
- Registrant
- Mt. Rushmore Telephone Co.
- Organization
- Mt. Rushmore Telephone Co. (C11683335)
- Type
- Reassigned
- Handle
- NET-208-53-211-0-1
- Parent
- NET-208-53-192-0-1
- Created
- Aug 17, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 12, 2004
- Status
- assigned
Report abuse
Abuse contact
- arin.
abuse@ sdncommunications. com - Name
- SDN Communications Abuse
- Phone
- +1-605-978-3548
- Handle
- SCA5-ARIN