NetRange:       207.252.0.0 - 207.252.255.255
CIDR:           207.252.0.0/16
NetName:        CERFNET-BLK-207
NetHandle:      NET-207-252-0-0-1
Parent:         NET207 (NET-207-0-0-0-0)
NetType:        Direct Allocation
OriginAS:
Organization:   CERFnet (CERF)
RegDate:        1996-11-21
Updated:        2003-03-12
Comment:
Comment:        Contact AT&T Abuse ( [email protected] ) for policy abuse issues.
Comment:        All policy abuse issues sent to other POCs will be disregarded.
Ref:            https://rdap.arin.net/registry/ip/207.252.0.0

OrgName:        CERFnet
OrgId:          CERF
Address:        5738 Pacific Center Blvd
City:           San Diego
StateProv:      CA
PostalCode:     92121
Country:        US
RegDate:        1989-04-18
Updated:        2022-02-08
Comment:        Contact AT&T Abuse ([email protected]) for policy abuse issues.
Comment:        All policy abuse issues sent to other POCs will be disregarded.
Ref:            https://rdap.arin.net/registry/entity/CERF

OrgTechHandle: DRU40-ARIN
OrgTechName:   Rueegg, Daniel
OrgTechPhone:  +41 1 4957899
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/DRU40-ARIN

OrgTechHandle: LEITM2-ARIN
OrgTechName:   Leitmanova, Lucia
OrgTechPhone:  +421 2 332 25571
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/LEITM2-ARIN

OrgTechHandle: NETWO10-ARIN
OrgTechName:   Network Provisioning
OrgTechPhone:  +1-877-789-2877
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10-ARIN

OrgNOCHandle: DRU40-ARIN
OrgNOCName:   Rueegg, Daniel
OrgNOCPhone:  +41 1 4957899
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/DRU40-ARIN

OrgNOCHandle: LEITM2-ARIN
OrgNOCName:   Leitmanova, Lucia
OrgNOCPhone:  +421 2 332 25571
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/LEITM2-ARIN

OrgRoutingHandle: DRU40-ARIN
OrgRoutingName:   Rueegg, Daniel
OrgRoutingPhone:  +41 1 4957899
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DRU40-ARIN

OrgRoutingHandle: LEITM2-ARIN
OrgRoutingName:   Leitmanova, Lucia
OrgRoutingPhone:  +421 2 332 25571
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/LEITM2-ARIN

OrgTechHandle: ZS44-ARIN
OrgTechName:   IPAdmin-ATT Internet Services
OrgTechPhone:  +1-888-510-5545
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-ARIN

OrgAbuseHandle: NETWO10-ARIN
OrgAbuseName:   Network Provisioning
OrgAbusePhone:  +1-877-789-2877
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO10-ARIN

RTechHandle: ICC-ARIN
RTechName:   IP Team
RTechPhone:  +1-888-613-6330
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/ICC-ARIN

RAbuseHandle: ATTAB-ARIN
RAbuseName:   ATT Abuse
RAbusePhone:  +1-919-319-8130
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/ATTAB-ARIN

RTechHandle: IPSWI-ARIN
RTechName:   IP SWIP
RTechPhone:  +1-888-613-6330
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/IPSWI-ARIN

RTechHandle: DK71-ARIN
RTechName:   Kostick, Deirdre
RTechPhone:  +1-919-319-8249
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/DK71-ARIN


NetRange:       207.252.173.0 - 207.252.173.255
CIDR:           207.252.173.0/24
NetName:        CERF-MESIROW-A
NetHandle:      NET-207-252-173-0-1
Parent:         CERFNET-BLK-207 (NET-207-252-0-0-1)
NetType:        Reassigned
OriginAS:
Organization:   Mesirow Financial (MESIRO)
RegDate:        1998-10-15
Updated:        1998-10-15
Ref:            https://rdap.arin.net/registry/ip/207.252.173.0

OrgName:        Mesirow Financial
OrgId:          MESIRO
Address:        350 N. Clark St.
City:           Chicago
StateProv:      IL
PostalCode:     60610
Country:        US
RegDate:        1994-10-31
Updated:        2015-01-12
Ref:            https://rdap.arin.net/registry/entity/MESIRO

OrgTechHandle: PL345-ARIN
OrgTechName:   Letarte, Phil
OrgTechPhone:  +1-312-595-6710
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/PL345-ARIN

OrgAbuseHandle: PL345-ARIN
OrgAbuseName:   Letarte, Phil
OrgAbusePhone:  +1-312-595-6710
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/PL345-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