Data as of Nov 10, 2026

121.54.76.0/22

No anonymizer space · no proxy exits in 30 days

Smart Broadband, Inc.

Announcement
RPKI valid
Announced by
Type
Mobile
98% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
121.54.0.0/17
since Nov 2006
AS10139MobileSmart Broadband, Inc.

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
121.54.0.0/1732,768SMARTBRO-PHSmart Broadband, Inc. (ORG-SBI2-AP) · PHALLOCATED PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.54.76.192/298Eagle-ExpressEagle ExpressASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.54.76.240/298One-Commerce-Baclaran1One Commerce Baclaran1ASSIGNED 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

1,024 addresses
TypeAddressesShareRanges
Mobile1,00898%3
Business161.6%2

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

121.54.64.0/20

Routing history

Pattern
Stable
First seen
Sep 2010
Current origin since
Nov 2024 · 2.0 yr
Origin networks
1