Data as of Nov 4, 2026
121.1.48.0/20
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 |
|---|---|---|---|---|
| 121.1.52.0/22 since Mar 2021 | 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@ |
| └ 121.1.48.240/28 | 16 | I-Connect-Phils | I Connect Phils | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.0/30 | 4 | SMARTBRO-PH | Las Pinas Cisco ER <> Las Pinas BH | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.4/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link1 <> Tagaytay BH E1 Link1 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.8/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link2 <> Tagaytay BH E1 Link2 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.12/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link3 <> Tagaytay BH E1 Link3 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.16/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link4 <> Tagaytay BH E1 Link4 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.20/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link5 <> Tagaytay BH E1 Link5 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.24/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link6 <> Tagaytay BH E1 Link6 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.28/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link7 <> Tagaytay BH E1 Link7 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.32/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link8 <> Tagaytay BH E1 Link8 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.36/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link9 <> Tagaytay BH E1 Link9 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.40/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link10 <> Tagaytay BH E1 Link10 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.44/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link11 <> Tagaytay BH E1 Link11 | ASSIGNED NON-PORTABLE | — | allsmarttscipbb@ |
| └ 121.1.52.48/30 | 4 | SMARTBRO-PH | Las Pinas BH E1 Link12 <> Tagaytay BH E1 Link12 | 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 | 4,080 | >99% | 4 | |
| Business | 16 | 0.39% | 1 |
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
- Sep 2010
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.1.32.0/19 | AS10139 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10139 | NTTCOM | Smart | MAINT-PLDT | Aug 14, 2013 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 121.1.48.0/21 | AS10139 | NTTCOM | Smart | MAINT-PLDT | Aug 6, 2013 |
| 121.1.48.0/24 | AS10139 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jan 29, 2007 |
| 121.1.56.0/21 | AS10139 | NTTCOM | Smart | MAINT-PLDT | Aug 6, 2013 |
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