ASN AS18577 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18577?

AS18577 is listed under ManTech International Corporation.

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.

AS18577 ManTech International Corporation

ASN Lookup Tool

ManTech International Corporation mantech.com

US 2 Routes

AS Data

AS18577

AS18577 – ManTech International Corporation

AS Number	18577
AS Name	MIC-64
Organization	ManTech International Corporation (mist-1)
Country	US
Website	mantech.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2000-09-14

ASN Intelligence API for production workflows

Use ASN data for AS18577 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
108.174.242.0/24	AS18577	ManTech International Corporation	ManTech International Corporation	256
108.174.240.0/24	AS18577	ManTech International Corporation	ManTech International Corporation	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:       18577
ASName:         MIC-64
ASHandle:       AS18577
RegDate:        2000-09-14
Updated:        2012-03-20
Ref:            https://rdap.arin.net/registry/autnum/18577


OrgName:        ManTech International Corporation
OrgId:          MIST-1
Address:        2251 Corporate Park Drive
City:           Herndon
StateProv:      VA
PostalCode:     20171
Country:        US
RegDate:        2012-01-12
Updated:        2026-09-14
Comment:        http://www.ManTech.com
Ref:            https://rdap.arin.net/registry/entity/MIST-1


OrgNOCHandle: TTW4-ARIN
OrgNOCName:   Ware, Thomas Thomas
OrgNOCPhone:  +1-703-218-6367 
OrgNOCEmail:  thomas.ware@mantech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TTW4-ARIN

OrgTechHandle: SSB23-ARIN
OrgTechName:   Burke, Sean Sean
OrgTechPhone:  +1-703-218-8263 
OrgTechEmail:  sean.burke@mantech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SSB23-ARIN

OrgAbuseHandle: TTW4-ARIN
OrgAbuseName:   Ware, Thomas Thomas
OrgAbusePhone:  +1-703-218-6367 
OrgAbuseEmail:  thomas.ware@mantech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TTW4-ARIN

OrgNOCHandle: SLOAN74-ARIN
OrgNOCName:   Sloan, Nathan 
OrgNOCPhone:  +1-202-621-1117 
OrgNOCEmail:  nathan.sloan@mantech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SLOAN74-ARIN

OrgAbuseHandle: SLOAN74-ARIN
OrgAbuseName:   Sloan, Nathan 
OrgAbusePhone:  +1-202-621-1117 
OrgAbuseEmail:  nathan.sloan@mantech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SLOAN74-ARIN

OrgTechHandle: TWE58-ARIN
OrgTechName:   Welsh, Todd 
OrgTechPhone:  +1-703-218-6000 
OrgTechEmail:  Todd.Welsh@ManTech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TWE58-ARIN

OrgNOCHandle: TWE58-ARIN
OrgNOCName:   Welsh, Todd 
OrgNOCPhone:  +1-703-218-6000 
OrgNOCEmail:  Todd.Welsh@ManTech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TWE58-ARIN

OrgTechHandle: SLOAN74-ARIN
OrgTechName:   Sloan, Nathan 
OrgTechPhone:  +1-202-621-1117 
OrgTechEmail:  nathan.sloan@mantech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SLOAN74-ARIN

OrgAbuseHandle: TWE58-ARIN
OrgAbuseName:   Welsh, Todd 
OrgAbusePhone:  +1-703-218-6000 
OrgAbuseEmail:  Todd.Welsh@ManTech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TWE58-ARIN

OrgTechHandle: TTW4-ARIN
OrgTechName:   Ware, Thomas Thomas
OrgTechPhone:  +1-703-218-6367 
OrgTechEmail:  thomas.ware@mantech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TTW4-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" : "18577",
    "as_handle" : "AS18577",
    "as_name" : "MIC-64",
    "tech_contacts" : [ "SSB23-ARIN", "TWE58-ARIN", "SLOAN74-ARIN", "TTW4-ARIN" ],
    "abuse_contacts" : [ "TTW4-ARIN", "SLOAN74-ARIN", "TWE58-ARIN" ],
    "date_created" : "2000-09-14",
    "date_updated" : "2012-03-20",
    "source" : "https://rdap.arin.net/registry/autnum/18577"
  } ],
  "organization" : {
    "handle" : "MIST-1",
    "name" : "ManTech International Corporation",
    "address" : [ "2251 Corporate Park Drive", "Herndon", "VA", "20171", "US" ],
    "street" : "Corporate Park Drive",
    "city" : "Herndon",
    "state" : "VA",
    "zip_code" : "20171",
    "country" : [ "US" ],
    "date_created" : "2012-01-12",
    "date_updated" : "2026-09-14",
    "source" : "https://rdap.arin.net/registry/entity/MIST-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "SSB23-ARIN",
    "name" : "Burke, Sean Sean",
    "email" : [ "sean.burke@mantech.com" ],
    "phone" : [ "+1-703-218-8263" ],
    "source" : "https://rdap.arin.net/registry/entity/SSB23-ARIN"
  }, {
    "handle" : "TWE58-ARIN",
    "name" : "Welsh, Todd",
    "email" : [ "Todd.Welsh@ManTech.com" ],
    "phone" : [ "+1-703-218-6000" ],
    "source" : "https://rdap.arin.net/registry/entity/TWE58-ARIN"
  }, {
    "handle" : "SLOAN74-ARIN",
    "name" : "Sloan, Nathan",
    "email" : [ "nathan.sloan@mantech.com" ],
    "phone" : [ "+1-202-621-1117" ],
    "source" : "https://rdap.arin.net/registry/entity/SLOAN74-ARIN"
  }, {
    "handle" : "TTW4-ARIN",
    "name" : "Ware, Thomas Thomas",
    "email" : [ "thomas.ware@mantech.com" ],
    "phone" : [ "+1-703-218-6367" ],
    "source" : "https://rdap.arin.net/registry/entity/TTW4-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "TTW4-ARIN",
    "name" : "Ware, Thomas Thomas",
    "email" : [ "thomas.ware@mantech.com" ],
    "phone" : [ "+1-703-218-6367" ],
    "source" : "https://rdap.arin.net/registry/entity/TTW4-ARIN"
  }, {
    "handle" : "SLOAN74-ARIN",
    "name" : "Sloan, Nathan",
    "email" : [ "nathan.sloan@mantech.com" ],
    "phone" : [ "+1-202-621-1117" ],
    "source" : "https://rdap.arin.net/registry/entity/SLOAN74-ARIN"
  }, {
    "handle" : "TWE58-ARIN",
    "name" : "Welsh, Todd",
    "email" : [ "Todd.Welsh@ManTech.com" ],
    "phone" : [ "+1-703-218-6000" ],
    "source" : "https://rdap.arin.net/registry/entity/TWE58-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US