www.customerservice.att.com

Issued by VeriSign Class 3 Secure Server CA - G3

About this certificate


This digital certificate with serial number 0c:ef:a3:01:5f:f9:28:eb:ed:6d:0f:be:e8:d2:9c:f8 was issued on by VeriSign, Inc. .

While the certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates.

Cerificate errors/warnings *beta

  • WARNING: Using depricated TeletexString for '[Southfield]'
  • WARNING: Using depricated TeletexString for '[AT&T Services, Inc.]'
  • WARNING: Using depricated TeletexString for '[CSO NetC MO]'
  • WARNING: Using depricated TeletexString for '[www.customerservice.att.com]'

AT&T Services, Inc.

Organization: AT&T Services, Inc.
Organization unit: CSO NetC MO
State / Province: Michigan
Locality: Southfield
Country: US

VeriSign, Inc.

Organization: VeriSign, Inc.
Organization unit: VeriSign Trust Network
Organization unit: Terms of use at https://www.verisign.com/rpa (c)10
State / Province: Michigan
Locality: Southfield
Country: US

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 0c:ef:a3:01:5f:f9:28:eb:ed:6d:0f:be:e8:d2:9c:f8
Serial Number (int): 17195001040304663723472258514535226616
Serial Number lenght: 124 bits, 16 octets

SubjectKeyId:
AuthorityKeyId: 0d:44:5c:16:53:44:c1:82:7e:1d:20:ab:25:f4:01:63:d8:be:79:a5

Fingerprint (sha1): 9f:42:7f:06:ad:9d:ab:5a:a2:bc:25:af:6b:7d:0a:17:46:99:2f:1d
Fingerprint (sha256): c0:9c:4b:2c:82:fd:0a:3b:be:ef:96:d8:6f:36:b3:f1:56:0e:35:64:e0:4c:d5:47:05:a2:84:c5:6b:d6:41:9f

Issuing Certificate URL: http://SVRSecure-G3-aia.verisign.com/SVRSecureG3.cer

Revocation information

OCSP Server: http://ocsp.verisign.com
CRL Distribution Point: http://SVRSecure-G3-crl.verisign.com/SVRSecureG3.crl

Check the revocation status for the current certificate on www.customerservice.att.com
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any other subject alternative names besides the common name of the subject: www.customerservice.att.com

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFXTCCBEWgAwIBAgIQDO+jAV/5KOvtbQ++6NKc+DANBgkqhkiG9w0BAQUFADCB tTELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTswOQYDVQQLEzJUZXJtcyBvZiB1c2Ug YXQgaHR0cHM6Ly93d3cudmVyaXNpZ24uY29tL3JwYSAoYykxMDEvMC0GA1UEAxMm VmVyaVNpZ24gQ2xhc3MgMyBTZWN1cmUgU2VydmVyIENBIC0gRzMwHhcNMTMxMTA2 MDAwMDAwWhcNMTQxMjAxMjM1OTU5WjCBjzELMAkGA1UEBhMCVVMxETAPBgNVBAgT CE1pY2hpZ2FuMRMwEQYDVQQHFApTb3V0aGZpZWxkMRwwGgYDVQQKFBNBVCZUIFNl cnZpY2VzLCBJbmMuMRQwEgYDVQQLFAtDU08gTmV0QyBNTzEkMCIGA1UEAxQbd3d3 LmN1c3RvbWVyc2VydmljZS5hdHQuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A MIIBCgKCAQEAs6/Wzgr3DyJhuzbzy6MvtD3ySWoVZAYf+5RCrYKIlU8GZMdN4J1H 2rbPww7eyHJ+5eS0x9iHAIm5X6VWM9I9qeThTp3cQ9cc0FxNIXlUg2cBiXNTKxak Kg4xAT9U8fbSaYFdD5mQUAeUlabvdbTDGHvkIirIpsjGY/APkTV0V7G0cEUluBRC YSznZHk1NQiOd4a/5vyybMlAGSCwwyS38Pfvb9370QK4DiSCcsgnmoQmj2RhyB1D aWuC/we62mY4O0J/CPSw6Z0av6l4gm/Im8VQPR3Vxha3Hr4HviKOJRDLM723DvMV 6janM5SQpbElj/APieU5Zflwev6q5aSecwIDAQABo4IBizCCAYcwJgYDVR0RBB8w HYIbd3d3LmN1c3RvbWVyc2VydmljZS5hdHQuY29tMAkGA1UdEwQCMAAwDgYDVR0P AQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjBDBgNVHSAE PDA6MDgGCmCGSAGG+EUBBzYwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cudmVy aXNpZ24uY29tL2NwczAfBgNVHSMEGDAWgBQNRFwWU0TBgn4dIKsl9AFj2L55pTBF BgNVHR8EPjA8MDqgOKA2hjRodHRwOi8vU1ZSU2VjdXJlLUczLWNybC52ZXJpc2ln bi5jb20vU1ZSU2VjdXJlRzMuY3JsMHYGCCsGAQUFBwEBBGowaDAkBggrBgEFBQcw AYYYaHR0cDovL29jc3AudmVyaXNpZ24uY29tMEAGCCsGAQUFBzAChjRodHRwOi8v U1ZSU2VjdXJlLUczLWFpYS52ZXJpc2lnbi5jb20vU1ZSU2VjdXJlRzMuY2VyMA0G CSqGSIb3DQEBBQUAA4IBAQAepQplxiLG2lZKDAoTv+tpFdf4Bmt7lssNb0PX2D+1 nMKG/VB8b4TNJAq8NXg8ithAJc5NKMp+ZICnRc+vK+uuNdm+qsQ4kj07VqTKyPN9 0KhJeSFHVWTYrpJCgFuluWvIB+0M/++5wAwxC9kzRuc4+pzgaAkbnmQEHsQTdaCJ TWV3Mkz0WphZHUk7Fp2yG1ws2CaiOp0E2L73PsoNVlTJ/HcW1gHhdwX5ZoUNre2K nMvWv4en4QG/4mUQNVuGTWrGV5RvCvuX/hxzesj/qi1gP3HjB76wBwyQeEikXbc6 C4RaMS2EYoeS76RpTQI8/IvKCpm1RQFuZ+g3mnWc+g42 -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs6/Wzgr3DyJhuzbzy6Mv tD3ySWoVZAYf+5RCrYKIlU8GZMdN4J1H2rbPww7eyHJ+5eS0x9iHAIm5X6VWM9I9 qeThTp3cQ9cc0FxNIXlUg2cBiXNTKxakKg4xAT9U8fbSaYFdD5mQUAeUlabvdbTD GHvkIirIpsjGY/APkTV0V7G0cEUluBRCYSznZHk1NQiOd4a/5vyybMlAGSCwwyS3 8Pfvb9370QK4DiSCcsgnmoQmj2RhyB1DaWuC/we62mY4O0J/CPSw6Z0av6l4gm/I m8VQPR3Vxha3Hr4HviKOJRDLM723DvMV6janM5SQpbElj/APieU5Zflwev6q5aSe cwIDAQAB -----END PUBLIC KEY-----

ASN1 Decoded

[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 17195001040304663723472258514535226616 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'VeriSign, Inc.' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'VeriSign Trust Network' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Terms of use at https://www.verisign.com/rpa (c)10' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'VeriSign Class 3 Secure Server CA - G3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-11-06 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-12-01 23:59:59 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Michigan' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:20|false] TeletexString, T61String 'Southfield' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:20|false] TeletexString, T61String 'AT&T Services, Inc.' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:20|false] TeletexString, T61String 'CSO NetC MO' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:20|false] TeletexString, T61String 'www.customerservice.att.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22683366071701129065089712837333296637317539374339135839649169452428849331237834962023813073440093378873692845808884730234508579238560613593577482607300261945604619821103007031588353380518663180598314642784070060918850551598791193042760597360691086475485164997413138853524010659051939826849755918699400290144841877650092868949729108051304763156553827932863126953861010257698562999957673253489505242539348575607659257267212173941710981359909182351992553109057129059212023901757399406017636084391387760994118246201897624994447008944213079565648832841751301289920132550495971985974828110942865495443375909676335604473459 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (31 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.customerservice.att.com' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (60 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.113733.1.7.54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'https://www.verisign.com/cps' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 0d445c165344c1827e1d20ab25f40163d8be79a5 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (62 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://SVRSecure-G3-crl.verisign.com/SVRSecureG3.crl' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (106 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.verisign.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://SVRSecure-G3-aia.verisign.com/SVRSecureG3.cer' . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 001ea50a65c622c6da564a0c0a13bfeb6915d7f8066b7b96cb0d6f43d7d83fb59cc286fd507c6f84cd240abc35783c8ad84025ce4d28ca7e6480a745cfaf2bebae35d9beaac438923d3b56a4cac8f37dd0a8497921475564d8ae9242805ba5b96bc807ed0cffefb9c00c310bd93346e738fa9ce068091b9e64041ec41375a0894d6577324cf45a98591d493b169db21b5c2cd826a23a9d04d8bef73eca0d5654c9fc7716d601e17705f966850daded8a9ccbd6bf87a7e101bfe26510355b864d6ac657946f0afb97fe1c737ac8ffaa2d603f71e307beb0070c907848a45db73a0b845a312d84628792efa4694d023cfc8bca0a99b545016e67e8379a759cfa0e36