Data as of Nov 5, 2026
121.1.16.0/20
No anonymizer space · no proxy exits in 30 daysSmart Broadband, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 121.1.0.0/18 since Jul 2006 | AS10139 | Mobile | Smart Broadband, Inc. |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 121.1.24.0/21 since Apr 2025 | AS10139 | Mobile | Smart Broadband, Inc. |
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 |
|---|---|---|---|---|---|---|
| 121.1.0.0/18 | 16,384 | SMARTBRO-PH | Smart Broadband, Inc. (ORG-SBI2-AP) · PH | ALLOCATED PORTABLE | — | allsmarttscipbb@ |
| └ 121. | 9 | Aboitiz-Cagayan | Aboitiz Cagayan | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.29.176/28 | 16 | MTU-Camiguin-Polytechnic-State-College | MTU Camguin Polytechnic State College | 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
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Mobile | 4,071 | >99% | 4 | |
| Business | 25 | 0.61% | 2 |
Network & registry
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
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2006
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.1.16.0/20 | AS10139 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10139 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jan 29, 2007 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 121.1.16.0/21 | AS10139 | NTTCOM | Smart | MAINT-PLDT | Aug 6, 2013 |
| 121.1.16.0/24 | AS10139 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jan 29, 2007 |
Whois
Registration for this announcement
- Range
- 121.
1. 0. 0/ 18 - 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