AS Name
ATT-CERFNET-BLOCK
Org Name
AT&T Enhanced Network Services
Registry Region
United States
Looking Glass
IPv4Prefixes

81

IPv6Prefixes

0

IPv4 NUMs

30,464

IPv6 NUMs(/64)

65,536

30,464 IPv4 Addresses
CIDR Description IP Num
12.102.193.0/24 AT&T Services, Inc. 256
12.102.194.0/24 AT&T Services, Inc. 256
12.102.196.0/24 AT&T Services, Inc. 256
12.102.197.0/24 AT&T Services, Inc. 256
12.102.198.0/24 AT&T Services, Inc. 256
12.102.199.0/24 AT&T Services, Inc. 256
12.102.201.0/24 AT&T Services, Inc. 256
12.102.202.0/24 AT&T Services, Inc. 256
12.102.203.0/24 AT&T Services, Inc. 256
12.102.207.0/24 AT&T Services, Inc. 256
12.102.208.0/24 AT&T Services, Inc. 256
12.102.209.0/24 AT&T Services, Inc. 256
12.102.210.0/24 AT&T Services, Inc. 256
12.102.211.0/24 AT&T Services, Inc. 256
12.120.196.0/24 AT&T Worldnet Services (C00716213) 256
12.120.197.0/24 AT&T Worldnet Services (C00716213) 256
12.120.198.0/24 AT&T Worldnet Services (C00716213) 256
12.120.199.0/24 AT&T Worldnet Services (C00716213) 256
12.120.200.0/24 AT&T Worldnet Services (C00716213) 256
12.120.201.0/24 AT&T Worldnet Services (C00716213) 256
12.120.202.0/24 AT&T Worldnet Services (C00716213) 256
12.120.203.0/24 AT&T Worldnet Services (C00716213) 256
12.120.204.0/24 AT&T Worldnet Services (C00716213) 256
12.120.205.0/24 AT&T Worldnet Services (C00716213) 256
12.120.206.0/24 AT&T Worldnet Services (C00716213) 256
12.120.207.0/24 AT&T Worldnet Services (C00716213) 256
12.120.208.0/24 AT&T Worldnet Services (C00716213) 256
12.120.209.0/24 AT&T Worldnet Services (C00716213) 256
12.120.210.0/24 AT&T Worldnet Services (C00716213) 256
12.120.211.0/24 AT&T Worldnet Services (C00716213) 256
12.120.212.0/24 AT&T Worldnet Services (C00716213) 256
12.120.213.0/24 AT&T Worldnet Services (C00716213) 256
12.120.214.0/24 AT&T Worldnet Services (C00716213) 256
12.120.215.0/24 AT&T Worldnet Services (C00716213) 256
12.121.96.0/24 AT&T Worldnet Services (C00716224) 256
12.121.97.0/24 AT&T Worldnet Services (C00716224) 256
12.121.98.0/24 AT&T Worldnet Services (C00716224) 256
12.121.99.0/24 AT&T Worldnet Services (C00716224) 256
12.121.100.0/24 AT&T Worldnet Services (C00716224) 256
12.121.102.0/24 AT&T Worldnet Services (C00716224) 256
12.121.104.0/24 AT&T Worldnet Services (C00716224) 256
12.121.106.0/24 AT&T Worldnet Services (C00716224) 256
12.193.109.0/24 ATT LABS AISMIDDLETOWN 256
12.193.111.0/24 ATT LABS AISMIDDLETOWN 256
12.193.113.0/24 CONSUMER VOIP 256
12.255.144.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.145.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.146.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.147.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.148.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.149.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.150.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.151.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.152.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.153.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.154.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.156.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.157.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.158.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.159.0/24 CFWN Pool-MP5L10S (C02398038) 256
12.255.160.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.161.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.162.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.163.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.164.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.165.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.166.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.167.0/24 CFWN Pool-MP5L11AS (C02398039) 256
12.255.168.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.169.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.170.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.172.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.173.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.174.0/24 CFWN Pool-MP5L11BS (C02398040) 256
12.255.175.0/24 CFWN Pool-MP5L11BS (C02398040) 256
32.40.224.0/20 AT&T Global Network Services, LLC 4096
32.67.0.0/21 AT&T Global Network Services, LLC 2048
32.67.8.0/23 AT&T Global Network Services, LLC 512
32.67.10.0/24 AT&T Global Network Services, LLC 256
32.67.15.0/24 AT&T Global Network Services, LLC 256
32.67.16.0/20 AT&T Global Network Services, LLC 4096
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS5730 WORLDNET3 - AT&T Services, Inc., US United States 0 0 IPv4 IPv4 IPv6 IPv6
ASNumber:       17224 - 17233
ASName:         ATT-CERFNET-BLOCK
ASHandle:       AS17224
RegDate:        2000-08-08
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:        2000-08-08
Updated:        2012-10-10
Ref:            https://rdap.arin.net/registry/entity/AENS-1


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

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

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