Data as of Nov 11, 2026
121.54.76.0/23
No anonymizer space · no proxy exits in 30 daysSmart Broadband, Inc.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 121.54.0.0/17 | 32,768 | SMARTBRO-PH | Smart Broadband, Inc. (ORG-SBI2-AP) · PH | ALLOCATED PORTABLE | — | allsmarttscipbb@ |
| └ 121.54.76.192/29 | 8 | Eagle-Express | Eagle Express | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.54.76.240/29 | 8 | One-Commerce-Baclaran1 | One Commerce Baclaran1 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Mobile | 496 | 97% | 3 | |
| Business | 16 | 3.1% | 2 |
Network & registry
Announced by
Covering announcement 121.54.0.0/17
- Prefix
- 121.54.0.0/17
- Announced by
- AS10139 Smart Broadband, Inc.
- Type
- Mobile
- RPKI
- RPKI valid
- Netname
- SMARTBRO-PH
- Registrant
- Smart Broadband, Inc.
- RIR
- APNIC
Origin network
AS10139
PH
- Name
- Smart Broadband, Inc.
- Type
- Internet provider
- Registered
- Nov 21, 2006
- Domain
- smart.com.ph
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 121.54.0.0/17
121.54.0.0/17
Routing history
- Pattern
- Stable
- First seen
- Nov 2006
- Current origin since
- Nov 2006 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.54.0.0/17 | AS10139 | /24 | APNIC | RPKI valid |
IRR
Route objects on 121.54.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10139 | NTTCOM | Weroam Meridian | MAINT-PLDT | Jun 21, 2006 |
Whois
Registration for this announcement
- Range
- 121.
54. 0. 0/ 17 - Netname
- SMARTBRO-PH
- Registrant
- Smart Broadband, Inc.
- Registrant country
- PH
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 20, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- PH
- Delegated
- Jun 19, 2006
- Status
- assigned
Report abuse
Abuse contact
- allsmarttscipbb@
smart. com. ph - Name
- ABUSE SMARTBROPH
- Handle
- AS2810-AP