63.240.0.0/15

AT&T Enterprises, LLC

Announcing ASNs: 1

Parent Prefix:

Abuse: abuse@att.net

RIR: IANA

Prefix
Routing
Raw Whois

Announcing ASNs

Country	ASN	Name	Description
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC

63.240.0.0/15 Summary

Prefix:

63.240.0.0/15

Name:

CERFNET-BLK-5

Description:

AT&T Enterprises, LLC

Country:

IP Addresses:

131,072

Regional Registry:

IANA

Allocation Status:

Parent Prefix:

Contacts

Email Contacts:

routing@cbbtier3.att.net

ipadmin@semail.att.com

rm-ipspecialist@att.com

abuse@att.net

Abuse Contacts:

abuse@att.net

Address:

208 S. Akard St.,

Dallas,

TX,

75202,

AS7018 AT&T Enterprises, LLC - Prefix Upstreams

ASN	Name	Description
AS6762	SEABONE-NET	TELECOM ITALIA SPARKLE S.p.A.
AS2497	IIJ	Internet Initiative Japan Inc.
AS3356	LEVEL3	Level 3 Parent, LLC
AS6461	ZAYO-6461	Zayo Bandwidth
AS6830	LibertyGlobal	Liberty Global (formerly UPC Broadband Holding, aka AORTA)
AS1299	TWELVE99	Arelion, f/k/a Telia Carrier
AS174	COGENT-174	Cogent Communications
AS6939	HURRICANE	Hurricane Electric LLC
AS2914	NTT-DATA-2914	NTT America, Inc.
AS3257	GTT-BACKBONE	GTT

# start

NetRange:       63.240.0.0 - 63.242.255.255
CIDR:           63.240.0.0/15, 63.242.0.0/16
NetName:        CERFNET-BLK-5
NetHandle:      NET-63-240-0-0-1
Parent:         NET63 (NET-63-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   AT&T Enterprises, LLC (AEL-360)
RegDate:        1999-11-03
Updated:        2025-03-19
Ref:            https://rdap.arin.net/registry/ip/63.240.0.0



OrgName:        AT&T Enterprises, LLC
OrgId:          AEL-360
Address:        208 S. Akard St.
City:           Dallas
StateProv:      TX
PostalCode:     75202
Country:        US
RegDate:        2024-11-22
Updated:        2025-03-21
Ref:            https://rdap.arin.net/registry/entity/AEL-360


OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName:   Routing POC
OrgRoutingPhone:  +1-999-999-9999 
OrgRoutingEmail:  routing@cbbtier3.att.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI59-ARIN

OrgTechHandle: ZS44-ARIN
OrgTechName:   IPAdmin-ATT Internet Services
OrgTechPhone:  +1-888-510-5545 
OrgTechEmail:  ipadmin@semail.att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-ARIN

OrgTechHandle: ICC-ARIN
OrgTechName:   IP Team
OrgTechPhone:  +1-888-876-2382 
OrgTechEmail:  rm-ipspecialist@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ICC-ARIN

OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName:   abuse
OrgAbusePhone:  +1-919-319-8167 
OrgAbuseEmail:  abuse@att.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7-ARIN