ASN AS31751 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS31751?

AS31751 is listed under The Market Builder, Inc.

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?

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AS31751 The Market Builder, Inc

ASN Lookup Tool

The Market Builder, Inc themarketbuilder.com

US 1 Routes

AS Data

AS31751

AS31751 – The Market Builder, Inc

AS Number	31751
AS Name	AS-MB-1
Organization	The Market Builder, Inc (mb-1)
Country	US
Website	themarketbuilder.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2011-02-28

ASN Intelligence API for production workflows

Use ASN data for AS31751 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.102.132.0/23	AS31751	The Market Builder, Inc	The Market Builder, Inc	512

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:       31751
ASName:         AS-MB-1
ASHandle:       AS31751
RegDate:        2011-02-28
Updated:        2012-03-20
Comment:        http://www.themarketbuilder.com
Comment:        Standard NOC Hours 8am to 5pm M-F
Comment:        Emergency Service Available
Ref:            https://rdap.arin.net/registry/autnum/31751


OrgName:        The Market Builder, Inc
OrgId:          MB-1
Address:        PO Box 22122
City:           Mesa
StateProv:      AZ
PostalCode:     85277
Country:        US
RegDate:        2010-12-21
Updated:        2025-02-14
Comment:        http://www.mktbldr.com
Comment:        NOC hours are 8am to 5pm
Ref:            https://rdap.arin.net/registry/entity/MB-1


OrgTechHandle: LAWSO5-ARIN
OrgTechName:   Lawson, Paul 
OrgTechPhone:  +1-480-641-6204 
OrgTechEmail:  paul@themarketbuilder.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LAWSO5-ARIN

OrgNOCHandle: LAWSO5-ARIN
OrgNOCName:   Lawson, Paul 
OrgNOCPhone:  +1-480-641-6204 
OrgNOCEmail:  paul@themarketbuilder.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/LAWSO5-ARIN

OrgAbuseHandle: LAWSO5-ARIN
OrgAbuseName:   Lawson, Paul 
OrgAbusePhone:  +1-480-641-6204 
OrgAbuseEmail:  paul@themarketbuilder.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LAWSO5-ARIN

RAbuseHandle: LAWSO5-ARIN
RAbuseName:   Lawson, Paul 
RAbusePhone:  +1-480-641-6204 
RAbuseEmail:  paul@themarketbuilder.com
RAbuseRef:    https://rdap.arin.net/registry/entity/LAWSO5-ARIN

RNOCHandle: LAWSO5-ARIN
RNOCName:   Lawson, Paul 
RNOCPhone:  +1-480-641-6204 
RNOCEmail:  paul@themarketbuilder.com
RNOCRef:    https://rdap.arin.net/registry/entity/LAWSO5-ARIN

RTechHandle: LAWSO5-ARIN
RTechName:   Lawson, Paul 
RTechPhone:  +1-480-641-6204 
RTechEmail:  paul@themarketbuilder.com
RTechRef:    https://rdap.arin.net/registry/entity/LAWSO5-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "31751",
    "as_handle" : "AS31751",
    "as_name" : "AS-MB-1",
    "tech_contacts" : [ "LAWSO5-ARIN", "LAWSO5-ARIN" ],
    "abuse_contacts" : [ "LAWSO5-ARIN", "LAWSO5-ARIN" ],
    "date_created" : "2011-02-28",
    "date_updated" : "2012-03-20",
    "source" : "https://rdap.arin.net/registry/autnum/31751"
  } ],
  "organization" : {
    "handle" : "MB-1",
    "name" : "The Market Builder, Inc",
    "address" : [ "PO Box 22122", "Mesa", "AZ", "85277", "US" ],
    "city" : "Mesa",
    "state" : "AZ",
    "zip_code" : "85277",
    "country" : [ "US" ],
    "date_created" : "2010-12-21",
    "date_updated" : "2025-02-14",
    "source" : "https://rdap.arin.net/registry/entity/MB-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "LAWSO5-ARIN",
    "name" : "Lawson, Paul",
    "email" : [ "paul@themarketbuilder.com" ],
    "phone" : [ "+1-480-641-6204" ],
    "source" : "https://rdap.arin.net/registry/entity/LAWSO5-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "LAWSO5-ARIN",
    "name" : "Lawson, Paul",
    "email" : [ "paul@themarketbuilder.com" ],
    "phone" : [ "+1-480-641-6204" ],
    "source" : "https://rdap.arin.net/registry/entity/LAWSO5-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS32298	Centersquare	US

Upstreams

AS Number	Description	Country
AS32298	Centersquare	US