Data as of Nov 15, 2026
208.53.207.0/24
No anonymizer space · no proxy exits in 30 daysSDN Communications
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.53.192.0/18 since Sep 2005 | AS13576 | Residential | 125 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. |
| └ 208.53.207.0/24 | 256 | 0-207-53-208-SDN-BCKB-LR2 | unknown | Reassigned | Mar 21, 2017 | arin. |
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
- Apr 2022
- Current origin since
- Apr 2022 · 4.6 yr
- Origin networks
- 1
Recorded history
History
- Also announced by
- 393417
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 208.53.207.0/24 | AS13576 | /24 | ARIN | RPKI valid |
| 208.53.207.0/24 | AS393417 | /24 | ARIN | Another network |
| 208.53.192.0/18 | AS13576 | /18 | ARIN | Too specific |
Whois
Registration for this announcement
- Range
- 208.
53. 207. 0/ 24 - Netname
- 0-207-53-208-SDN-BCKB-LR2
- Organization
- Not stated by the registry
- Type
- Reassigned
- Handle
- NET-208-53-207-0-1
- Parent
- NET-208-53-192-0-1
- Created
- Mar 21, 2017
- 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