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AS28573

AS28573 is Claro Brasil’s network.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (4 Nov 2026)

Short answer

AS28573 belongs to Claro NXT Telecomunicacoes Ltda. DB-IP Lite attributes 9,954,816 IPv4 addresses in 120 ranges and 130 IPv6 ranges to it, all or nearly all of the IPv4 space in Brazil. The number is registered with LACNIC in Brazil on 27 Nov 2003.

Facts for AS28573
Operator (DB-IP)Claro NXT Telecomunicacoes Ltda
KindHome broadband (curated)
IPv4 addresses9,954,816
IPv4 ranges120
IPv6 ranges130
RegistryLACNIC
Registered27 Nov 2003
Registry countryBrazil (BR)

Does it publish a geofeed?

Not for the range we sampled (179.136.0.0 – 179.143.255.255): its registry record, and the record above it, link no RFC 8805 geofeed (checked 2 Nov 2026). Without one, location databases have to estimate where these addresses are used, which is a common reason customers of Claro Brasil see the wrong city. Customers can ask Claro Brasil to publish one; the evidence report drafts that request.

Shared addresses (CGNAT)

Claro Brasil hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 130 IPv6 ranges for AS28573, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

BR100%
MX0.01%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
177.32.0.0 – 177.34.119.255177.32.0.0/15, 177.34.0.0/18 …161,792
177.34.128.0 – 177.35.255.255177.34.128.0/17, 177.35.0.0/1698,304
177.64.0.0 – 177.64.119.255177.64.0.0/18, 177.64.64.0/19 …30,720
177.64.128.0 – 177.65.63.255177.64.128.0/17, 177.65.0.0/1849,152
177.65.96.0 – 177.65.111.255177.65.96.0/204,096
177.65.128.0 – 177.65.255.255177.65.128.0/1732,768
177.80.0.0 – 177.83.255.255177.80.0.0/14262,144
177.100.0.0 – 177.100.17.255177.100.0.0/20, 177.100.16.0/234,608
177.100.20.0 – 177.100.31.255177.100.20.0/22, 177.100.24.0/213,072
177.100.48.0 – 177.100.95.255177.100.48.0/20, 177.100.64.0/1912,288
177.100.104.0 – 177.100.165.255177.100.104.0/21, 177.100.112.0/20 …15,872
177.100.168.0 – 177.100.239.255177.100.168.0/21, 177.100.176.0/20 …18,432
177.127.0.0 – 177.127.31.255177.127.0.0/198,192
177.127.36.0 – 177.127.43.255177.127.36.0/22, 177.127.40.0/222,048
177.127.48.0 – 177.127.255.255177.127.48.0/20, 177.127.64.0/18 …53,248
177.140.0.0 – 177.143.127.255177.140.0.0/15, 177.142.0.0/16 …229,376
177.143.160.0 – 177.143.187.255177.143.160.0/20, 177.143.176.0/21 …7,168
177.143.192.0 – 177.143.255.255177.143.192.0/1816,384
177.180.0.0 – 177.180.31.255177.180.0.0/198,192
177.180.48.0 – 177.181.111.255177.180.48.0/20, 177.180.64.0/18 …81,920
177.181.160.0 – 177.183.255.255177.181.160.0/19, 177.181.192.0/18 …155,648
177.192.0.0 – 177.195.191.255177.192.0.0/15, 177.194.0.0/16 …245,760
177.195.208.0 – 177.195.255.255177.195.208.0/20, 177.195.224.0/1912,288
177.235.0.0 – 177.235.255.255177.235.0.0/1665,536
179.105.0.0 – 179.105.255.255179.105.0.0/1665,536
179.136.0.0 – 179.143.255.255179.136.0.0/13524,288
179.152.0.0 – 179.157.23.255179.152.0.0/14, 179.156.0.0/16 …333,824
179.157.32.0 – 179.159.255.255179.157.32.0/19, 179.157.64.0/18 …188,416
179.208.0.0 – 179.211.79.255179.208.0.0/15, 179.210.0.0/16 …217,088
179.211.96.0 – 179.215.223.255179.211.96.0/19, 179.211.128.0/17 …294,912
179.216.0.0 – 179.216.63.255179.216.0.0/1816,384
179.216.80.0 – 179.221.175.255179.216.80.0/20, 179.216.96.0/19 …352,256
179.221.192.0 – 179.223.255.255179.221.192.0/18, 179.222.0.0/15147,456
179.232.0.0 – 179.233.31.255179.232.0.0/16, 179.233.0.0/1973,728
179.233.64.0 – 179.235.255.255179.233.64.0/18, 179.233.128.0/17 …180,224
181.213.0.0 – 181.213.157.255181.213.0.0/17, 181.213.128.0/20 …40,448
181.213.166.0 – 181.213.166.255181.213.166.0/24256
181.213.192.0 – 181.213.255.255181.213.192.0/1816,384
181.216.32.0 – 181.216.247.255181.216.32.0/19, 181.216.64.0/18 …55,296
181.217.0.0 – 181.217.7.255181.217.0.0/212,048
181.217.40.0 – 181.218.103.255181.217.40.0/21, 181.217.48.0/20 …81,920
181.218.120.0 – 181.218.239.255181.218.120.0/21, 181.218.128.0/18 …30,720
181.218.248.0 – 181.219.87.255181.218.248.0/21, 181.219.0.0/18 …24,576
181.219.96.0 – 181.223.63.255181.219.96.0/19, 181.219.128.0/17 …253,952
181.223.96.0 – 181.223.255.255181.223.96.0/19, 181.223.128.0/1740,960
186.204.0.0 – 186.207.255.255186.204.0.0/14262,144
186.218.0.0 – 186.218.23.255186.218.0.0/20, 186.218.16.0/216,144
186.218.28.0 – 186.218.79.255186.218.28.0/22, 186.218.32.0/19 …13,312
186.218.96.0 – 186.218.155.255186.218.96.0/19, 186.218.128.0/20 …15,360
186.218.160.0 – 186.218.215.255186.218.160.0/19, 186.218.192.0/20 …14,336
2804:14c:: – 2804:14c:ea:ffff:ffff:ffff:ffff:ffff2804:14c::/41IPv6
2804:14c:101:: – 2804:14c:1db:ffff:ffff:ffff:ffff:ffff2804:14c:101::/48IPv6
2804:14c:210:: – 2804:14c:2b6:ffff:ffff:ffff:ffff:ffff2804:14c:210::/44IPv6
2804:14c:310:: – 2804:14c:4ff:ffff:ffff:ffff:ffff:ffff2804:14c:310::/44IPv6
2804:14c:3b00:: – 2804:14c:3bff:ffff:ffff:ffff:ffff:ffff2804:14c:3b00::/40IPv6
2804:14c:3d00:: – 2804:14c:3dff:ffff:ffff:ffff:ffff:ffff2804:14c:3d00::/40IPv6
2804:14c:3f81:: – 2804:14c:3f8e:ffff:ffff:ffff:ffff:ffff2804:14c:3f81::/48IPv6
2804:14c:4100:: – 2804:14c:41ff:ffff:ffff:ffff:ffff:ffff2804:14c:4100::/40IPv6
2804:14c:4300:: – 2804:14c:43ff:ffff:ffff:ffff:ffff:ffff2804:14c:4300::/40IPv6
2804:14c:4500:: – 2804:14c:45ff:ffff:ffff:ffff:ffff:ffff2804:14c:4500::/40IPv6
2804:14c:4700:: – 2804:14c:47ff:ffff:ffff:ffff:ffff:ffff2804:14c:4700::/40IPv6
2804:14c:5500:: – 2804:14c:55ff:ffff:ffff:ffff:ffff:ffff2804:14c:5500::/40IPv6
2804:14c:5700:: – 2804:14c:57ff:ffff:ffff:ffff:ffff:ffff2804:14c:5700::/40IPv6
2804:14c:5900:: – 2804:14c:59ff:ffff:ffff:ffff:ffff:ffff2804:14c:5900::/40IPv6
2804:14c:5b20:: – 2804:14c:5bff:ffff:ffff:ffff:ffff:ffff2804:14c:5b20::/43IPv6
2804:14c:5d00:: – 2804:14c:5dff:ffff:ffff:ffff:ffff:ffff2804:14c:5d00::/40IPv6
2804:14c:5f00:: – 2804:14c:5fff:ffff:ffff:ffff:ffff:ffff2804:14c:5f00::/40IPv6
2804:14c:6100:: – 2804:14c:61ff:ffff:ffff:ffff:ffff:ffff2804:14c:6100::/40IPv6
2804:14c:6300:: – 2804:14c:63ff:ffff:ffff:ffff:ffff:ffff2804:14c:6300::/40IPv6
2804:14c:6522:: – 2804:14c:65f4:ffff:ffff:ffff:ffff:ffff2804:14c:6522::/47IPv6
Showing 50 of 120 IPv4 and 20 of 130 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 5 Nov 2026