What is ASN AS399700?

ASN AS399700 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399700?

AS399700 is listed under Mansfield Community Fiber, 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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AS399700 Mansfield Community Fiber, Inc

ASN Lookup Tool

Mansfield Community Fiber, Inc mcfibervt.com

US 5 Routes

AS Data

AS399700

AS399700 – Mansfield Community Fiber, Inc

AS Number	399700
AS Name	MANSFIELD-COMMUNITY-FIBER
Organization	Mansfield Community Fiber, Inc (mcf-54)
Country	US
Website	mcfibervt.com
Number of IPv4 Routes	3
Number of IPv6 Routes	2
ASN type	ISP
Registry	ARIN
Date Allocated	2021-05-24

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
66.97.168.0/24	AS399700	Mansfield Community Fiber, Inc	Mansfield Community Fiber, Inc	256
185.212.5.0/24	AS399700	Mansfield Community Fiber, Inc	Mansfield Community Fiber, Inc	256
162.33.184.0/22	AS399700	Mansfield Community Fiber, Inc	Mansfield Community Fiber, Inc	1024
2602:fc73::/36	AS399700	Mansfield Community Fiber, Inc	Mansfield Community Fiber, Inc	~5×10²⁷
2602:fc73:e00::/39	AS399700	Mansfield Community Fiber, Inc	Mansfield Community Fiber, Inc	~619×10²⁴

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:       399700
ASName:         MANSFIELD-COMMUNITY-FIBER
ASHandle:       AS399700
RegDate:        2021-05-24
Updated:        2021-05-24
Comment:        https://mcfibervt.com/
Ref:            https://rdap.arin.net/registry/autnum/399700


OrgName:        Mansfield Community Fiber, Inc
OrgId:          MCF-54
Address:        P.O. Box 1084
City:           Jericho Center
StateProv:      VT
PostalCode:     05465
Country:        US
RegDate:        2017-05-11
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/MCF-54


OrgDNSHandle: KOLON1-ARIN
OrgDNSName:   Kolon, Matt 
OrgDNSPhone:  +1-802-899-2044 
OrgDNSEmail:  matt.kolon@mcfibervt.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/KOLON1-ARIN

OrgRoutingHandle: KOLON1-ARIN
OrgRoutingName:   Kolon, Matt 
OrgRoutingPhone:  +1-802-899-2044 
OrgRoutingEmail:  matt.kolon@mcfibervt.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/KOLON1-ARIN

OrgAbuseHandle: PFEIF73-ARIN
OrgAbuseName:   Pfeiffer, Scott 
OrgAbusePhone:  +1-802-391-4144 
OrgAbuseEmail:  scott.pfeiffer@mcfibervt.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/PFEIF73-ARIN

OrgTechHandle: PFEIF73-ARIN
OrgTechName:   Pfeiffer, Scott 
OrgTechPhone:  +1-802-391-4144 
OrgTechEmail:  scott.pfeiffer@mcfibervt.com
OrgTechRef:    https://rdap.arin.net/registry/entity/PFEIF73-ARIN

OrgDNSHandle: PFEIF73-ARIN
OrgDNSName:   Pfeiffer, Scott 
OrgDNSPhone:  +1-802-391-4144 
OrgDNSEmail:  scott.pfeiffer@mcfibervt.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/PFEIF73-ARIN

OrgNOCHandle: SMITH3462-ARIN
OrgNOCName:   Smith, Steven 
OrgNOCPhone:  +1-802-552-1008 
OrgNOCEmail:  steve.smith@mcfibervt.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SMITH3462-ARIN

OrgTechHandle: SMITH3462-ARIN
OrgTechName:   Smith, Steven 
OrgTechPhone:  +1-802-552-1008 
OrgTechEmail:  steve.smith@mcfibervt.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SMITH3462-ARIN

OrgRoutingHandle: PFEIF73-ARIN
OrgRoutingName:   Pfeiffer, Scott 
OrgRoutingPhone:  +1-802-391-4144 
OrgRoutingEmail:  scott.pfeiffer@mcfibervt.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/PFEIF73-ARIN

OrgNOCHandle: PFEIF73-ARIN
OrgNOCName:   Pfeiffer, Scott 
OrgNOCPhone:  +1-802-391-4144 
OrgNOCEmail:  scott.pfeiffer@mcfibervt.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/PFEIF73-ARIN

OrgAbuseHandle: SMITH3462-ARIN
OrgAbuseName:   Smith, Steven 
OrgAbusePhone:  +1-802-552-1008 
OrgAbuseEmail:  steve.smith@mcfibervt.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SMITH3462-ARIN

OrgTechHandle: KOLON1-ARIN
OrgTechName:   Kolon, Matt 
OrgTechPhone:  +1-802-899-2044 
OrgTechEmail:  matt.kolon@mcfibervt.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KOLON1-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" : "399700",
    "as_handle" : "AS399700",
    "as_name" : "MANSFIELD-COMMUNITY-FIBER",
    "admin_contacts" : [ "KOLON1-ARIN", "PFEIF73-ARIN" ],
    "tech_contacts" : [ "KOLON1-ARIN", "PFEIF73-ARIN", "SMITH3462-ARIN", "PFEIF73-ARIN", "KOLON1-ARIN" ],
    "abuse_contacts" : [ "PFEIF73-ARIN", "SMITH3462-ARIN" ],
    "date_created" : "2021-05-24",
    "date_updated" : "2021-05-24",
    "source" : "https://rdap.arin.net/registry/autnum/399700"
  } ],
  "organization" : {
    "handle" : "MCF-54",
    "name" : "Mansfield Community Fiber, Inc",
    "address" : [ "P.O. Box 1084", "Jericho Center", "VT", "05465", "US" ],
    "city" : "Jericho Center",
    "state" : "VT",
    "zip_code" : "05465",
    "country" : [ "US" ],
    "date_created" : "2017-05-11",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/MCF-54",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "KOLON1-ARIN",
    "name" : "Kolon, Matt",
    "email" : [ "matt.kolon@mcfibervt.com" ],
    "phone" : [ "+1-802-899-2044" ],
    "source" : "https://rdap.arin.net/registry/entity/KOLON1-ARIN"
  }, {
    "handle" : "PFEIF73-ARIN",
    "name" : "Pfeiffer, Scott",
    "email" : [ "scott.pfeiffer@mcfibervt.com" ],
    "phone" : [ "+1-802-391-4144" ],
    "source" : "https://rdap.arin.net/registry/entity/PFEIF73-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "KOLON1-ARIN",
    "name" : "Kolon, Matt",
    "email" : [ "matt.kolon@mcfibervt.com" ],
    "phone" : [ "+1-802-899-2044" ],
    "source" : "https://rdap.arin.net/registry/entity/KOLON1-ARIN"
  }, {
    "handle" : "PFEIF73-ARIN",
    "name" : "Pfeiffer, Scott",
    "email" : [ "scott.pfeiffer@mcfibervt.com" ],
    "phone" : [ "+1-802-391-4144" ],
    "source" : "https://rdap.arin.net/registry/entity/PFEIF73-ARIN"
  }, {
    "handle" : "SMITH3462-ARIN",
    "name" : "Smith, Steven",
    "email" : [ "steve.smith@mcfibervt.com" ],
    "phone" : [ "+1-802-552-1008" ],
    "source" : "https://rdap.arin.net/registry/entity/SMITH3462-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "PFEIF73-ARIN",
    "name" : "Pfeiffer, Scott",
    "email" : [ "scott.pfeiffer@mcfibervt.com" ],
    "phone" : [ "+1-802-391-4144" ],
    "source" : "https://rdap.arin.net/registry/entity/PFEIF73-ARIN"
  }, {
    "handle" : "SMITH3462-ARIN",
    "name" : "Smith, Steven",
    "email" : [ "steve.smith@mcfibervt.com" ],
    "phone" : [ "+1-802-552-1008" ],
    "source" : "https://rdap.arin.net/registry/entity/SMITH3462-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS13536	FirstLight Fiber, Inc.	US
AS11589	Stowe Communications LLC	US

Upstreams

AS Number	Description	Country
AS13536	FirstLight Fiber, Inc.	US
AS11589	Stowe Communications LLC	US