ASN AS12128 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS12128?

AS12128 is listed under Refinitiv US LLC.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS12128 Refinitiv US LLC | IPGeolocation.io

ASN Lookup Tool

Refinitiv US LLC refinitiv.com

US 3 Routes

AS Data

AS12128

AS12128 – Refinitiv US LLC

AS Number	12128
AS Name	ITS-HYDERABAD
Organization	Refinitiv US LLC(rul-43)
Country	US
Website	refinitiv.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2014-05-02

ASN Intelligence API for production workflows

Use ASN data for AS12128 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
146.242.25.0/24	AS12128	Refinitiv US LLC	Refinitiv US LLC	256
159.220.162.0/24	AS12128	Refinitiv US LLC	Refinitiv US LLC	256
159.220.78.0/24	AS12128	Refinitiv US LLC	Refinitiv US LLC	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       12128
ASName:         ITS-HYDERABAD
ASHandle:       AS12128
RegDate:        2014-05-02
Updated:        2020-08-11    
Ref:            https://rdap.arin.net/registry/autnum/12128


OrgName:        Refinitiv US LLC
OrgId:          RUL-43
Address:        REFINITIV, 3 TIMES SQUARE
City:           NEW YORK
StateProv:      NY
PostalCode:     10036
Country:        US
RegDate:        2019-11-18
Updated:        2022-08-17
Ref:            https://rdap.arin.net/registry/entity/RUL-43


OrgDNSHandle: RIT6-ARIN
OrgDNSName:   Refinitiv IP Tech
OrgDNSPhone:  +1-201-356-6260 
OrgDNSEmail:  ref.ip-tech@refinitiv.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/RIT6-ARIN

OrgAbuseHandle: ADMIN7288-ARIN
OrgAbuseName:   Administrator
OrgAbusePhone:  +1-646-223-4000 
OrgAbuseEmail:  ref.ip-admin@lseg.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN7288-ARIN

OrgAbuseHandle: RIA13-ARIN
OrgAbuseName:   Refinitiv IP Abuse
OrgAbusePhone:  +442072501122 
OrgAbuseEmail:  ref.ip-abuse@refinitiv.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RIA13-ARIN

OrgRoutingHandle: ADMIN7288-ARIN
OrgRoutingName:   Administrator
OrgRoutingPhone:  +1-646-223-4000 
OrgRoutingEmail:  ref.ip-admin@lseg.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ADMIN7288-ARIN

OrgTechHandle: ADMIN7288-ARIN
OrgTechName:   Administrator
OrgTechPhone:  +1-646-223-4000 
OrgTechEmail:  ref.ip-admin@lseg.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN7288-ARIN

OrgTechHandle: RIT6-ARIN
OrgTechName:   Refinitiv IP Tech
OrgTechPhone:  +1-201-356-6260 
OrgTechEmail:  ref.ip-tech@refinitiv.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RIT6-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS55410	Vodafone Idea Ltd. VIL	IN
AS55410	Vodafone India Limited	IN
AS9498	Bharti Airtel Ltd	IN
AS9498	Bharti Airtel Limited	IN
AS4755	Tata Communications (formerly VSNL)	IN
AS4755	Tata Communications Limited	IN