Data as of Nov 6, 2026
103.221.255.0/24
No anonymizer space · no proxy exits in 30 daysuniversity of dhaka
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 103.221.254.0/23 since Aug 2025 | AS135524 | Business | 81 11 always on | university of dhaka | |
| 103.221.252.0/22 since Feb 2026 | AS135524 | Business | 104 15 always on | university of dhaka |
Network & registry
Origin network
AS135524
BD
- Name
- university of dhaka
- Type
- Education
- Registered
- Jun 2, 2016
- Domain
- univdhaka.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2016
- Current origin since
- Jul 2017 · 9.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.221.255.0/24 | AS135524 | /24 | APNIC | RPKI valid |
| 103.221.254.0/23 | AS135524 | /23 | APNIC | Too specific |
| 103.221.252.0/22 | AS135524 | /22 | APNIC | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS135524 | APNIC | Dhaka University - Route Object | MAINT-UNIVERSITYOFDHAKA-BD | Jun 5, 2016 |
Whois
Registration for this announcement
- Range
- 103.
221. 252. 0/ 22 - Netname
- UNIVERSITYOFDHAKA-BD
- Registrant
- university of dhaka
- Registrant country
- BD
- Organization
- Not stated by the registry
- Type
- ASSIGNED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 10, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- BD
- Delegated
- Jun 3, 2016
- Status
- assigned
Report abuse
Abuse contact
- tanvir@
du. ac. bd - Name
- ABUSE UNIVERSITYOFDHAKABD
- Handle
- AU249-AP