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#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#

ASNumber:
40841
ASName: MARKETAXESS-INC-AS
ASHandle: AS40841
RegDate: 2008-04-29
Updated: 2022-09-06
Comment: Coontact MarketAxess Holdings Inc. at (212) 813-6111 or network@marketaxess.com for any questions or comments.
Ref: https://rdap.arin.net/registry/autnum/40841

OrgName:
MARKETAXESS HOLDINGS, INC.
OrgId: MARKE-84
Address: 299 Park Avenue, 10th Floor
City: NEW YORK
StateProv: NY
PostalCode: 10171
Country: US
RegDate: 2008-04-15
Updated: 2022-09-06
Ref: https://rdap.arin.net/registry/entity/MARKE-84

OrgNOCHandle:
NEMH-ARIN
OrgNOCName: Network Engineering - MarketAxess Holdings inc
OrgNOCPhone: +1-212-813-6000
OrgNOCEmail: NETWORK@marketaxess.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NEMH-ARIN

OrgAbuseHandle:
NEMH-ARIN
OrgAbuseName: Network Engineering - MarketAxess Holdings inc
OrgAbusePhone: +1-212-813-6000
OrgAbuseEmail: NETWORK@marketaxess.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NEMH-ARIN

OrgTechHandle:
NEMH-ARIN
OrgTechName: Network Engineering - MarketAxess Holdings inc
OrgTechPhone: +1-212-813-6000
OrgTechEmail: NETWORK@marketaxess.com
OrgTechRef: https://rdap.arin.net/registry/entity/NEMH-ARIN

RTechHandle:
NEMH-ARIN
RTechName: Network Engineering - MarketAxess Holdings inc
RTechPhone: +1-212-813-6000
RTechEmail: NETWORK@marketaxess.com
RTechRef: https://rdap.arin.net/registry/entity/NEMH-ARIN

RNOCHandle:
NEMH-ARIN
RNOCName: Network Engineering - MarketAxess Holdings inc
RNOCPhone: +1-212-813-6000
RNOCEmail: NETWORK@marketaxess.com
RNOCRef: https://rdap.arin.net/registry/entity/NEMH-ARIN

RAbuseHandle:
NEMH-ARIN
RAbuseName: Network Engineering - MarketAxess Holdings inc
RAbusePhone: +1-212-813-6000
RAbuseEmail: NETWORK@marketaxess.com
RAbuseRef: https://rdap.arin.net/registry/entity/NEMH-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 1997-2025, American Registry for Internet Numbers, Ltd.
#

IPv4 Results:


AS40841 MARKETAXESS HOLDINGS, INC.
38.108.243.0 - 38.108.243.255
64.208.116.0 - 64.208.116.255
64.209.115.0 - 64.209.115.255
64.215.249.0 - 64.215.249.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255

IPv6 Results:


AS40841 MARKETAXESS HOLDINGS, INC.
2607:f518:166:: - 2607:f518:166:ffff:ffff:ffff:ffff:ffff Prefix: 48
2620:110:1000:: - 2620:110:1001:ffff:ffff:ffff:ffff:ffff Prefix: 47
2620:110:1002:: - 2620:110:1002:ffff:ffff:ffff:ffff:ffff Prefix: 48
2620:110:1003:: - 2620:110:1003:ffff:ffff:ffff:ffff:ffff Prefix: 48
2620:110:1004:: - 2620:110:1004:ffff:ffff:ffff:ffff:ffff Prefix: 48
2620:110:1005:: - 2620:110:1005:ffff:ffff:ffff:ffff:ffff Prefix: 48
2620:110:1006:: - 2620:110:1007:ffff:ffff:ffff:ffff:ffff Prefix: 47
2620:110:1008:: - 2620:110:100f:ffff:ffff:ffff:ffff:ffff Prefix: 45

WHOIS Lookup

Determine details about the online resource by using:
  • IP address
  • Domain name
  • Autonomous system number (ASN)
  • Company name
You can get information about the owners of Internet resources. Аind out how to contact the owner of the resource via email or other methods of communication.
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