Autonomous System details

AS28571

UNIVERSIDADE DE SAO PAULO · usp.br

Brazil

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AS28571 – UNIVERSIDADE DE SAO PAULO

Field	Value
Country	Brazil
Website	usp.br
Hosted domains	181
IPv4 addresses	162,816
IPv6 addresses	79,237,833,920,821,255,033,600,000,000
ASN type	Education
Registry	lacnic
Allocated	18 years ago on Dec 19, 2007
Updated	10 years ago on Nov 12, 2015

Netblock	Company	Num of IPs
143.107.0.0/16	UNIVERSIDADE DE SAO PAULO	65,536
177.90.128.0/17	UNIVERSIDADE DE SAO PAULO	32,768
177.90.64.0/18	UNIVERSIDADE DE SAO PAULO	16,384
200.144.192.0/18	UNIVERSIDADE DE SAO PAULO	16,384
177.90.32.0/19	UNIVERSIDADE DE SAO PAULO	8,192
200.144.160.0/19	UNIVERSIDADE DE SAO PAULO	8,192
200.17.16.0/20	UNIVERSIDADE DE SAO PAULO	4,096
200.136.0.0/20	UNIVERSIDADE DE SAO PAULO	4,096
200.144.48.0/20	UNIVERSIDADE DE SAO PAULO	4,096
200.144.184.0/21	UNIVERSIDADE DE SAO PAULO	2,048
200.144.240.0/22	UNIVERSIDADE DE SAO PAULO	1,024
200.144.244.0/22	UNIVERSIDADE DE SAO PAULO	1,024
143.107.44.0/23	UNIVERSIDADE DE SAO PAULO	512
143.107.84.0/23	UNIVERSIDADE DE SAO PAULO	512
143.107.92.0/23	UNIVERSIDADE DE SAO PAULO	512
143.107.178.0/23	UNIVERSIDADE DE SAO PAULO	512
200.18.106.0/23	Instituto Pesquisas Tecnológicas do Estado de S.P.	512
200.18.108.0/23	Instituto Pesquisas Tecnológicas do Estado de S.P.	512
200.136.52.0/23	INSTITUTO DE PESQUISA ENERGÉTICAS E NUCLEARES	512
200.144.62.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.72.0/23	FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO	512
200.144.180.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.182.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.206.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.234.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.250.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.252.0/23	UNIVERSIDADE DE SAO PAULO	512
200.144.254.0/23	UNIVERSIDADE DE SAO PAULO	512
143.107.3.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.8.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.14.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.27.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.64.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.86.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.88.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.154.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.248.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.252.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.253.0/24	UNIVERSIDADE DE SAO PAULO	256
143.107.254.0/24	UNIVERSIDADE DE SAO PAULO	256
200.9.95.0/24	UNIVERSIDADE DE SAO PAULO	256
200.17.27.0/24	UNIVERSIDADE DE SAO PAULO	256
200.18.53.0/24	Instituto Pesquisas Tecnológicas do Estado de S.P.	256
200.136.49.0/24	UNIVERSIDADE DE SAO PAULO	256
200.136.54.0/24	Instituto Butantan	256
200.144.60.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.212.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.236.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.237.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.238.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.239.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.248.0/24	UNIVERSIDADE DE SAO PAULO	256
200.144.249.0/24	UNIVERSIDADE DE SAO PAULO	256

Netblock	Company
2001:12d0::/32	UNIVERSIDADE DE SAO PAULO
2001:12d0::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:840::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:880::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:8c0::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:8068::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:8070::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:c000::/48	UNIVERSIDADE DE SAO PAULO
2001:12d0:c080::/48	UNIVERSIDADE DE SAO PAULO

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WHOIS Details

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                                                ASHandle:       AS28571
                                                OrgID:          AS28571
                                                ASName:         AS28571
                                                ASNumber:       AS28571
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 181 domain names hosted across 107 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
200.144.255.230	██████████	18
200.144.248.41	██████████	9
200.144.244.77	██████████	7
200.144.255.179	██████████	6
200.144.244.78	██████████	5
143.107.166.120	██████████	5
200.144.235.134	██████	3
143.107.152.210	██████████	3
143.107.183.165	██████████	3
143.107.108.23	████████	2

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Peers

There are 43 peers for this ASN.

Peers	Name
AS10429	TELEFÔNICA BRASIL S.A
AS1251	FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO
AS132337	Axclusive
AS14537	Continent 8 LLC
AS16552	Tiggee LLC
AS1916	Rede Nacional de Ensino e Pesquisa
AS198150	SIACOM JSC
AS199524	G-Core Labs S.A.
AS22548	Núcleo de Inf. e Coord. do Ponto BR - NIC.BR
AS24482	SG.GS
AS262427	Invista Net Provedor de Acesso Ltda
AS262462	Aranet Play
AS263009	FORTE TELECOM LTDA.
AS263152	MIGO TELECOM
AS263237	PowerHost Telecom SPA
AS263541	IMF NETWORK DATA LTDA - ME
AS264409	GRUPO YAX
AS264479	Turbozone Internet
AS267613	ELETRONET S.A.
AS268976	Weclix Telecom S/A
AS269180	VIPNET Conexão
AS271253	LINK BRASIL TELECOMUNICACOES LTDA
AS28329	SAMM TECNOLOGIA E TELECOMUNICACOES S.A
AS28624	PROVEDORA CMA INTERNET LTDA
AS28634	Life Tecnologia Ltda.
AS29049	Delta Telecom Ltd
AS35280	F5 Networks SARL
AS36236	NetActuate, Inc
AS39120	Convergenze S.p.A.
AS43733	Viva Armenia CJSC
AS49544	i3D.net B.V
AS51185	MainStreaming SpA
AS52468	UFINET PANAMA S.A.
AS52873	Softdados Telecomunicações
AS53202	Acesso10 Telecom
AS57463	NetIX Communications JSC
AS60503	FNX Tecnologia LTDA
AS6057	Administracion Nacional de Telecomunicaciones
AS61573	IP TELECOM
AS61610	ELEA DATA CENTERS
AS61832	DB3 SERVICOS DE TELECOMUNICACOES S.A
AS6424	EDGOO NETWORKS
AS6939	Hurricane Electric LLC

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Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS10429	TELEFÔNICA BRASIL S.A
AS1251	FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO
AS1916	Rede Nacional de Ensino e Pesquisa
AS52468	UFINET PANAMA S.A.
AS61610	ELEA DATA CENTERS
AS6939	Hurricane Electric LLC

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

343 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2001:12d0:a008:4000::1209	AS28571 UNIVERSIDADE DE SAO PAULO	`5.82ms` from Osasco, BR
143.107.233.191	AS28571 UNIVERSIDADE DE SAO PAULO	`7.13ms` from Osasco, BR
143.107.171.5	AS28571 UNIVERSIDADE DE SAO PAULO	`0.90ms` from Sao Paulo, BR
143.107.10.17	AS28571 UNIVERSIDADE DE SAO PAULO	`0.83ms` from Sao Paulo, BR
143.107.5.1	AS28571 UNIVERSIDADE DE SAO PAULO	`4.88ms` from Sao Paulo, BR
143.107.174.1	AS28571 UNIVERSIDADE DE SAO PAULO	`0.91ms` from Sao Paulo, BR
143.107.3.4	AS28571 UNIVERSIDADE DE SAO PAULO	`1.83ms` from Sao Paulo, BR
143.107.215.4	AS28571 UNIVERSIDADE DE SAO PAULO	`5.18ms` from Sao Paulo, BR
200.144.195.229	AS28571 UNIVERSIDADE DE SAO PAULO	`0.72ms` from Sao Paulo, BR
200.144.255.1	AS28571 UNIVERSIDADE DE SAO PAULO	`1.74ms` from Sao Paulo, BR
200.144.213.40	AS28571 UNIVERSIDADE DE SAO PAULO	`6.20ms` from Sao Paulo, BR
143.107.58.66	AS28571 UNIVERSIDADE DE SAO PAULO	`2.54ms` from Sao Paulo, BR
2001:12d0:80b8:80::1	AS28571 UNIVERSIDADE DE SAO PAULO	`2.59ms` from Sao Paulo, BR
2001:12d0:c000:100::1	AS28571 UNIVERSIDADE DE SAO PAULO	`1.51ms` from São Paulo, BR
143.107.229.81	AS28571 UNIVERSIDADE DE SAO PAULO	`7.18ms` from Osasco, BR
200.136.9.17	AS28571 UNIVERSIDADE DE SAO PAULO	`7.90ms` from Osasco, BR
143.107.198.111	AS28571 UNIVERSIDADE DE SAO PAULO	`6.06ms` from Sao Paulo, BR
200.136.6.161	AS28571 UNIVERSIDADE DE SAO PAULO	`1.22ms` from Sao Paulo, BR
200.144.212.125	AS28571 UNIVERSIDADE DE SAO PAULO	`1.99ms` from Sao Paulo, BR
200.144.199.3	AS28571 UNIVERSIDADE DE SAO PAULO	`0.68ms` from Sao Paulo, BR
200.144.160.17	AS28571 UNIVERSIDADE DE SAO PAULO	`1.16ms` from Sao Paulo, BR
143.107.173.168	AS28571 UNIVERSIDADE DE SAO PAULO	`0.87ms` from Sao Paulo, BR
143.107.41.171	AS28571 UNIVERSIDADE DE SAO PAULO	`0.77ms` from Sao Paulo, BR
200.144.211.4	AS28571 UNIVERSIDADE DE SAO PAULO	`0.85ms` from Sao Paulo, BR
143.107.12.183	AS28571 UNIVERSIDADE DE SAO PAULO	`5.31ms` from Sao Paulo, BR

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
73.184.51.123	AS7922 Comcast Cable Communications, LLC	`4.89ms` from Atlanta, US
75.221.132.123	AS6167 Verizon Business	`13.71ms` from Chicago, US
67.172.11.91	AS7922 Comcast Cable Communications, LLC	`8.40ms` from Dallas, US
134.130.46.171	AS47610 RWTH Aachen University	`3.79ms` from Frankfurt am Main, DE
123.20.1.27	AS45899 VNPT Corp	`1.31ms` from Ho Chi Minh City, VN
66.132.162.91	AS35847 Ezee Fiber	`1.77ms` from Houston, US
61.84.91.75	AS4766 Korea Telecom	`0.87ms` from Incheon, KR
77.86.104.219	AS12390 KCOM Group Limited	`3.28ms` from Manchester, GB
77.108.19.187	AS34606 B.B.Bell SPA	`3.88ms` from Milan, IT
80.247.15.59	AS50624 Outscale SASU	`0.99ms` from Paris, FR
59.156.192.59	AS10013 FreeBit Co.,Ltd.	`2.63ms` from Tokyo, JP
59.173.137.27	AS4134 CHINANET BACKBONE	`2.38ms` from Wuhan, CN
84.83.89.155	AS1136 KPN B.V.	`2.28ms` from Amsterdam, NL
24.237.169.91	AS8047 GENERAL COMMUNICATION, INC.	`5.78ms` from Anchorage, US
35.92.143.91	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
71.201.130.219	AS7922 Comcast Cable Communications, LLC	`5.65ms` from Chicago, US
195.191.15.235	AS196870 Freistaat Thueringen	`4.08ms` from Frankfurt am Main, DE
217.72.211.91	AS29413 KOMRO Gesellschaft fuer Telekommunikation mit beschraenkter Haftung	`10.47ms` from Frankfurt am Main, DE
38.126.65.187	AS25840 Cascade Access, LLC	`7.79ms` from Los Angeles, US
109.107.115.235	AS200845 AVATEL TELECOM, SA	`10.41ms` from Madrid, ES
180.44.141.11	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.56ms` from Osaka, JP
82.164.152.43	AS2119 Telenor Norge AS	`6.79ms` from Oslo, NO
5.76.163.27	AS9198 JSC Kazakhtelecom	`0.59ms` from Pavlodar, KZ
44.216.59.187	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
182.172.51.11	AS10036 DLIVE	`1.34ms` from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f4 -m10 143.107.120.142

traceroute to 143.107.120.142 (143.107.120.142): 10 hops max, 52 byte packets

4 [] 187.16.216.20 34.429 ms

5 [AS28571] 143.107.22.58 34.401 ms

6 [AS28571] 143.107.0.134 34.47 ms

7 [AS28571] 143.107.22.150 34.493 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Castanhal, BR

On April 25th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS28571 at robtex.

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