AS Name
ATT-CERFNET-BLOCK
Org Name
AT&T Enhanced Network Services
AS17229 Looking Glass
IPv4Prefixes

40

IPv6Prefixes

0

IPv4 NUMs

45,312

IPv6 NUMs(/64)

0

45,312 IPv4 Addresses
CIDR Description IP Num
12.64.160.0/24 AT&T Global Services 256
12.64.161.0/24 AT&T Global Services 256
12.64.162.0/24 AT&T Global Services 256
12.64.163.0/24 AT&T Global Services 256
12.64.164.0/24 AT&T Global Services 256
12.64.165.0/24 AT&T Global Services 256
12.64.168.0/24 AT&T Global Services 256
12.64.169.0/24 AT&T Global Services 256
12.64.170.0/24 AT&T Global Services 256
12.64.171.0/24 AT&T Global Services 256
12.64.172.0/24 AT&T Global Services 256
12.64.173.0/24 AT&T Global Services 256
12.67.0.0/24 AT&T Global Services 256
12.67.13.0/24 AT&T Global Services 256
12.171.92.0/23 AT&T Services, Inc. 512
32.101.209.0/24 AT&T Global Network Services, LLC 256
32.228.96.0/24 AT&T Global Network Services, LLC 256
32.228.97.0/24 AT&T Global Network Services, LLC 256
32.228.98.0/24 AT&T Global Network Services, LLC 256
32.228.99.0/24 AT&T Global Network Services, LLC 256
32.228.100.0/24 AT&T Global Network Services, LLC 256
32.228.101.0/24 AT&T Global Network Services, LLC 256
32.228.102.0/24 AT&T Global Network Services, LLC 256
32.228.103.0/24 AT&T Global Network Services, LLC 256
63.240.128.0/18 CERFnet 16384
63.240.152.0/24 CERFnet 256
77.74.158.0/23 Exide Technologies SAS 512
77.74.159.0/24 Exide Technologies SAS 256
134.24.164.0/24 CERFnet 256
134.24.224.0/22 CERFnet 1024
194.105.116.0/23 Smiths Group plc 512
194.105.118.0/23 Smiths Group plc 512
199.105.128.0/21 CERFnet 2048
199.108.48.0/20 CERFnet 4096
206.16.70.0/23 CERFnet 512
206.18.96.0/19 Richardson Electronics (C00852623) 8192
206.18.144.0/20 CERFnet 4096
209.65.14.0/24 AT&T Services, Inc. 256
209.65.15.0/24 AT&T Services, Inc. 256
209.251.237.0/24 Hitachi Consulting Corporation 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS7018 ATT-INTERNET4 - AT&T Services, Inc., US United States 98,944,512 2,680,882,200,576 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS3660 BPC-ASN - Berry Global Inc, US United States 256 65,536 IPv4 IPv4 IPv6 IPv6
AS4465 EASYLINK1 - AT&T Services, Inc., US United States 512 0 IPv4 IPv4
AS29954 JLL-AM-CHI - Jones Lang LaSalle, Inc., US United States 6,656 524,288 IPv4 IPv4
AS30233 PAYCHEX-O - Paychex Incorporated, US United States 2,048 0 IPv4 IPv4
AS33155 ATS-NET - ADVANCED TECHNOLOGY SERVICES INC., US United States 1,792 0 IPv4 IPv4
AS63323 CAPTIONCALL, US United States 512 0 IPv4 IPv4
AS20479 TCF-ASN-TCF - TCF Financial Corporation, US United States 768 0 IPv4 IPv4
AS30573 OLDSECONDBANCORP - Old Second Bancorp, US United States 256 0 IPv4 IPv4
AS395699 ULINECOM - Uline, US United States 256 0 IPv4 IPv4
IP Address Domain NUMs Domains
12.171.92.20 3 admin.follettshelf.com
12.171.92.39 1 gtm-dc1.follett.com
12.171.92.40 1 gtm-dc2.follett.com
12.171.92.45 2 node0045.follett.com
12.171.92.46 2 c1.myfollett.com
12.171.92.49 1 node0049.follett.com
12.171.92.50 1 node0050.follett.com
12.171.92.51 2 c2.myfollett.com
12.171.92.52 2 c3.myfollett.com
12.171.92.53 3 c4.myfollett.com
ASNumber:       17224 - 17233
ASName:         ATT-CERFNET-BLOCK
ASHandle:       AS17224
RegDate:        2000-08-09
Updated:        2000-08-09    
Ref:            https://rdap.arin.net/registry/autnum/17224


OrgName:        AT&T Enhanced Network Services
OrgId:          AENS-1
Address:        P.O. Box 919014
City:           San Diego
StateProv:      CA
PostalCode:     92191
Country:        US
RegDate:        2000-08-09
Updated:        2012-10-10
Ref:            https://rdap.arin.net/registry/entity/AENS-1


OrgTechHandle: CERF-HM-ARIN
OrgTechName:   ATand T Enhanced Network Services
OrgTechPhone:  +1-858-812-5000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/CERF-HM-ARIN

OrgAbuseHandle: CERF-HM-ARIN
OrgAbuseName:   ATand T Enhanced Network Services
OrgAbusePhone:  +1-858-812-5000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CERF-HM-ARIN

RTechHandle: CERF-HM-ARIN
RTechName:   ATand T Enhanced Network Services
RTechPhone:  +1-858-812-5000 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/CERF-HM-ARIN