AS21519 - SBG-AS2 - Sinclair Broadcast Group, Inc., US

United States
AS Number
AS21519
AS Name
SBG-AS2
Org Name
Sinclair Broadcast Group, Inc.
Country
United States
Registry

arin

RegDate

2001-06-27

Updated

2026-05-15

AS21519 Looking Glass
IPv4Prefixes

1

IPv6Prefixes

0

IPv4 NUMs

1,024

IPv6 NUMs(/64)

0

1,024 IPv4 Addresses
CIDR Description IP Num
208.73.28.0/22
ROA Signed and Valid IRR Valid
Sinclair Broadcast Group, Inc. 1024
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS701 UUNET - Verizon Business, US United States 41,645,056 1,249,852,784,640 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,880,384 81,609,883,648 IPv4 IPv4
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1,750,016 52,076,871,680 IPv4 IPv4 
ASNumber:       21519
ASName:         SBG-AS2
ASHandle:       AS21519
RegDate:        2016-03-08
Updated:        2016-03-08
Ref:            https://rdap.arin.net/registry/autnum/21519


OrgName:        Sinclair Broadcast Group, Inc.
OrgId:          SINCLA-9
Address:        10706 Beaver Dam Rd
City:           Cockeysville
StateProv:      MD
PostalCode:     21030
Country:        US
RegDate:        2001-06-27
Updated:        2026-05-15
Ref:            https://rdap.arin.net/registry/entity/SINCLA-9


OrgTechHandle: ROBER1896-ARIN
OrgTechName:   Robertson, Omar 
OrgTechPhone:  +1-410-891-3318 
OrgTechEmail:  oorobertson@sbgtv.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ROBER1896-ARIN

OrgNOCHandle: SINCL70-ARIN
OrgNOCName:   SinclarNOC
OrgNOCPhone:  +1-800-228-2873 
OrgNOCEmail:  ml-Corp-Sinclair-NOC@sbgtv.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SINCL70-ARIN

OrgTechHandle: SMIGA-ARIN
OrgTechName:   Smigal, Matt 
OrgTechPhone:  +1-410-891-3567 
OrgTechEmail:  mjsmigal@sbgtv.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SMIGA-ARIN

OrgAbuseHandle: ABUSE9605-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-410-568-1500 
OrgAbuseEmail:  ml-sinclair-it-security@sbgtv.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9605-ARIN

OrgTechHandle: HOOTS6-ARIN
OrgTechName:   Hoots, Ian 
OrgTechPhone:  +1-410-568-2179 
OrgTechEmail:  tihoots@sbgtv.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOOTS6-ARIN

OrgTechHandle: JNL15-ARIN
OrgTechName:   Laughton, John N.
OrgTechPhone:  +1-410-568-1547 
OrgTechEmail:  jlaughto@sbgnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JNL15-ARIN