LAYER3 INTEL
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Data as of Nov 14, 2026

121.1.32.0/21

No anonymizer space · no proxy exits in 30 days

Smart Broadband, Inc.

Announcement
121.1.32.0/20
RPKI valid
Announced by
AS10139
Type
Mobile
96% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
121.1.0.0/18
since Jul 2006
AS10139MobileSmart Broadband, Inc.

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
121.1.0.0/1816,384SMARTBRO-PHSmart Broadband, Inc. (ORG-SBI2-AP) · PHALLOCATED PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.32.0/2664SMARTBRO-NETSmart Broadband, Inc.ASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.64/2816InfobahnInfobahnASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.80/298HZ-Araneta-ColiseumHZ Araneta ColiseumASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.96/298Daruma-Tech-PhilsDaruma Tech PhilsASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.120/298Philex-Mining-PasigPhilex Mining PasigASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.128/298Red-Ribbon-PasigRed Ribbon PasigASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.37.240/2816DAPDAPASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.1.39.160/298One-Commerce-FairviewOne Commerce FairviewASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Mobile1,97696%6
Business723.5%7

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

121.1.32.0/20

Routing history

Pattern
Stable
First seen
Aug 2006
Current origin since
Aug 2006 · 20 yr
Origin networks
1