Data as of Nov 8, 2026
208.184.105.0/24
No anonymizer space · no proxy exits in 30 daysSouthwest Research Institute · space held by Zayo Bandwidth
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.184.0.0/15 since May 2005 | AS6461 | Internet provider | 266 15 always on | Zayo Bandwidth |
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 |
|---|---|---|---|---|---|---|
| 208.184.0.0/15 | 131,072 | ABOVENET-6 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Aug 19, 1999 | abuse@ |
| └ 208.184.105.0/24 | 256 | NET-IDIA-388656-ZYO-208-184-105-0-24 | Southwest Research Institute (C10834783) · US | Reassigned | May 6, 2024 | abuse@ via ABOVENET-6 |
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
- Zayo Bandwidth
- Handle
- ZAYOB
- Range
- 208.
184. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Aug 19, 1999
Origin network
AS397126
US
- Name
- Southwest Research Institute
- Type
- Education
- Registered
- Aug 31, 2022
- Domain
- swri.org
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Aug 2018
- Current origin since
- Apr 2024 · 2.5 yr
- Origin networks
- 2
- Last change of origin
- Apr 2024
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 208.184.105.0/24 | AS397126 | /24 | ARIN | RPKI valid |
| 208.184.0.0/15 | AS6461 | /15 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS397126 | ARIN | This route is assigned to downstream customer Southwest Research Institute - AS397126 | MNT-ZAYOB | May 7, 2024 |
Whois
Registration for this announcement
- Range
- 208.
184. 105. 0/ 24 - Netname
- NET-IDIA-388656-ZYO-208-184-105-0-24
- Registrant
- Southwest Research Institute
- Organization
- Southwest Research Institute (C10834783)
- Type
- Reassigned
- Handle
- NET-208-184-105-0-1
- Parent
- NET-208-184-0-0-1
- Created
- May 6, 2024
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 19, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN