ASN lookup result for AS28573 Claro — network size, BGP routing and registration

BRAS28573ClaroISP

Claro NXT Telecomunicacoes LtdaBrazil · LACNICclaro.com.br

Home broadbandTor relays

IPv4 addresses

10,013,440

1,789 announced prefixes

IPv6 addresses

3.96 × 10²⁸

1,673 announced prefixes

BGP neighbours

…

CAIDA rank

#7,885

Customer cone 2 ASNs

Estimated users

21.4M

APNIC: 21.5M

RPKI

100% valid

0 invalid · 4 not covered

Average purity

88

263 sampled IPs

IXPs / facilities

0 / 0

Operator self-reported

History

How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.

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IP ranges

Currently announced prefixes with their RIR registration and geolocation.

PrefixRPKIRegistrationGeolocationAddresses
179.136.0.0/14Valid—BRIndaiatuba262,144
179.140.0.0/15Valid—BRBrazil131,072
179.142.0.0/15Valid—BRBrazil131,072
177.32.0.0/16Valid—BRSão Paulo65,536
177.33.0.0/16Valid—BRSão Paulo65,536
177.80.0.0/16Valid—BRSanto André65,536
177.81.0.0/16Valid—BRSão Paulo65,536
177.140.0.0/16Valid—BRSão Paulo65,536
177.141.0.0/16Valid—BRSão Paulo65,536
177.142.0.0/16Valid—BRRio de Janeiro65,536
177.192.0.0/16Valid—BRRio de Janeiro65,536
177.235.0.0/16Valid—BRBrasília65,536
179.158.0.0/16Valid—BRRio de Janeiro65,536
179.159.0.0/16Valid—BRCampinas65,536
179.208.0.0/16Valid—BRSão Paulo65,536
179.209.0.0/16Valid—BRSão Paulo65,536
179.210.0.0/16Valid—BRRio de Janeiro65,536
179.212.0.0/16Valid—BRSanto André65,536
179.218.0.0/16Valid—BRRio de Janeiro65,536
186.204.0.0/16Valid—BRSão Paulo65,536

Only the first 500 prefixes are listed; address counts and geography use all prefixes.

/24 block profile

One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.

/24s with data 644 / 39,115 (2%) · flagged 511

No risk flagsDatacenter (no flags)ProxyVPNAbuse / blocklistTorDarker = more flagged addresses; dashed = block screen only

189.6.128.0/1715/128 with data · 12 flagged

177.33.0.0/1612/256 with data · 9 flagged

177.141.0.0/1612/256 with data · 8 flagged

177.192.0.0/1612/256 with data · 6 flagged

177.140.0.0/1611/256 with data · 9 flagged

186.205.0.0/1611/256 with data · 9 flagged

191.177.0.0/169/256 with data · 5 flagged

179.136.0.0/148/1024 with data · 7 flagged

177.32.0.0/168/256 with data · 7 flagged

179.218.0.0/168/256 with data · 6 flagged

186.204.0.0/168/256 with data · 4 flagged

189.6.0.0/178/128 with data · 6 flagged

Hover a square for its numbers; click to see all 256 addresses.

Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.

IP reputation

IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.

Purity distribution

85–100 14870–84 10350–69 110–49 1

0.06%

Share of IPv4 reported or blocklisted

5,533

Listed IPs

263

Analysed IPs

Riskiest /24 blocks

/24 blockFlaggedAnalysed
177.183.215.0/2411

Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.

Geography

Where this network’s IPv4 addresses are located.

  • BR Brazil
  • MX Mexico
Scope
Single country
In registered country
100.0%

Estimated by sampling IPv4 ranges against a geolocation database.

Traffic observation

AS28573 · Last 7 days
Mobile vs. Desktop
Desktop 54.0%Mobile 45.9%
Desktop54.0%Mobile45.9%
Bot vs. Human
Human 83.6%Bot 16.4%
Human83.6%Bot16.4%

Adoption & Usage

Adoption and usage of key protocols

Internet Protocol (IP) Version
IPv4 30.7%IPv6 69.3%69.3%IPv6
IPv430.7%IPv669.3%
HTTP Version
HTTP/1.x
16.5%HTTP/2
54.3%HTTP/3
29.2%
HTTP vs. HTTPS
97.5% HTTPS (encrypted)
Plain HTTP 2.5%
TLS Version
TLS 1.0/1.1< 0.1%TLS 1.25.1%TLS 1.365.0%QUIC29.9%

Security & Attacks

Insights into network and application layer attack traffic

Layer 7 Attacks
GET
86.9%POST
10.9%HEAD
1.6%OPTIONS
0.5%Other
0.1%

BGP Announcements

Hourly BGP route announcements over the last 7 days

86,609,362
7-day total
5,505,067
Hourly peak

Data: Cloudflare Radar, licensed under CC BY-NC 4.0

Activity

Hourly traffic over the last 7 days, normalized to this network’s peak.

A pronounced day/night rhythm, typical of networks with human users.

00061218
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Times in UTCLessMore
Peak hour
00:00–01:00
Active hours
17 hrs
Weekend vs weekday
Weekdays ≈ weekends
Busiest day
Mon

Datacenter Presence

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BGP upstreams and neighbours

AS28573Standalone page
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WHOIS record

The registry’s record for this AS number: holder, status, dates and contacts.

Sources

Where the information on this page comes from and when it was updated.

InformationSourceUpdated
Registered countryRIR daily delegation statistics2026-10-20
Registered address & allocation dateRIR registration data (RDAP)2026-10-03
Organization & company countryAS-to-organization data2026-10-21
Network typeCleanIP ASN canon2026-10-19
Exchanges & facilitiesOperator self-reported interconnection data2026-10-21
Announced prefixes & BGP neighboursPublic BGP routing data2026-10-22
IPv4 geographyGeolocation database—
RPKI validationRPKI ROA validation data2026-10-22
Rank & customer coneCAIDA AS Rank2026-10-01
Estimated users (APNIC)APNIC Labs user estimates2026-10-19
Network tagsPublic routing data community tags2026-10-21
IP reputationCleanIP lookups and neighbour sampling—

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Multi-source cross-checks · In-house reputation data · Real data only

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