Report for 3370

Name

MCI-ASN - Verizon Business, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS4637) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

3370 MCI-ASN - MCI

  Adjacency:     2  Upstream:     1  Downstream:     1
  Upstream Adjacent AS list
    AS3378    MCI-ASN - MCI
  Downstream Adjacent AS list
    AS3377    MCI-ASN - MCI

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
471   AS3370   ORG+TRN Originate:     483328 /13.12  Transit:       9728 /18.75 MCI-ASN - MCI

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
  648 AS3370  MCI-ASN - MCI                                81     33     12     60     21  25.93%


  Prefix               AS Path                              Aggregation Suggestion
  146.1.192.0/20       4637 3491 701 3378 3370   
  159.98.223.0/24      4637 3491 701 3378 3370   
  165.122.0.0/16       4637 3491 701 3378 3370   
  165.122.0.0/19       4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.32.0/20      4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.64.0/19      4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.112.0/20     4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.115.0/24     4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.128.0/18     4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  165.122.192.0/18     4637 3491 701 3378 3370 - Withdrawn - matching aggregate 165.122.0.0/16 4637 3491 701 3378 3370
  166.32.0.0/20        4637 3491 701 3378 3370   
  166.32.48.0/20       4637 3491 701 3378 3370   
  166.32.56.0/24       4637 3491 701 3378 3370 - Withdrawn - matching aggregate 166.32.48.0/20 4637 3491 701 3378 3370
  166.32.128.0/19      4637 3491 701 3378 3370   
  166.32.160.0/20      4637 3491 701 3378 3370   
  166.32.240.0/20      4637 3491 701 3378 3370   
  166.33.0.0/19        4637 3491 701 3378 3370   
  166.33.32.0/20       4637 3491 701 3378 3370   
  166.33.48.0/22       4637 3491 701 3378 3370   
  166.33.56.0/21       4637 3491 701 3378 3370   
  166.33.64.0/18       4637 3491 701 3378 3370 + Announce - aggregate of 166.33.64.0/19 (4637 3491 701 3378 3370) and 166.33.96.0/19 (4637 3491 701 3378 3370)
  166.33.64.0/19       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.33.96.0/19 (4637 3491 701 3378 3370)
  166.33.96.0/19       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.33.64.0/19 (4637 3491 701 3378 3370)
  166.33.160.0/19      4637 3491 701 3378 3370 + Announce - aggregate of 166.33.160.0/20 (4637 3491 701 3378 3370) and 166.33.176.0/20 (4637 3491 701 3378 3370)
  166.33.160.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.33.176.0/20 (4637 3491 701 3378 3370)
  166.33.176.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.33.160.0/20 (4637 3491 701 3378 3370)
  166.33.192.0/20      4637 3491 701 3378 3370   
  166.34.64.0/18       4637 3491 701 3378 3370   
  166.34.128.0/17      4637 3491 701 3378 3370   
  166.35.128.0/17      4637 3491 701 3378 3370   
  166.36.0.0/19        4637 3491 701 3378 3370   
  166.36.80.0/20       4637 3491 701 3378 3370 + Announce - aggregate of 166.36.80.0/21 (4637 3491 701 3378 3370) and 166.36.88.0/21 (4637 3491 701 3378 3370)
  166.36.80.0/21       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.36.88.0/21 (4637 3491 701 3378 3370)
  166.36.88.0/21       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.36.80.0/21 (4637 3491 701 3378 3370)
  166.37.0.0/18        4637 3491 701 3378 3370   
  166.37.96.0/19       4637 3491 701 3378 3370   
  166.37.192.0/18      4637 3491 701 3378 3370 + Announce - aggregate of 166.37.192.0/19 (4637 3491 701 3378 3370) and 166.37.224.0/19 (4637 3491 701 3378 3370)
  166.37.192.0/19      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.37.224.0/19 (4637 3491 701 3378 3370)
  166.37.224.0/19      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.37.192.0/19 (4637 3491 701 3378 3370)
  166.38.34.0/24       4637 3491 701 3378 3370   
  166.38.76.0/22       4637 3491 701 3378 3370   
  166.38.96.0/21       4637 3491 701 3378 3370   
  166.38.128.0/23      4637 3491 701 3378 3370   
  166.38.160.0/21      4637 3491 701 3378 3370   
  166.38.224.0/20      4637 3491 701 3378 3370   
  166.39.0.0/20        4637 3491 701 3378 3370   
  166.39.64.0/19       4637 3491 701 3378 3370 + Announce - aggregate of 166.39.64.0/20 (4637 3491 701 3378 3370) and 166.39.80.0/20 (4637 3491 701 3378 3370)
  166.39.64.0/20       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.39.80.0/20 (4637 3491 701 3378 3370)
  166.39.80.0/20       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.39.64.0/20 (4637 3491 701 3378 3370)
  166.39.116.0/22      4637 3491 701 3378 3370   
  166.39.120.0/21      4637 3491 701 3378 3370   
  166.39.128.0/19      4637 3491 701 3378 3370 + Announce - aggregate of 166.39.128.0/20 (4637 3491 701 3378 3370) and 166.39.144.0/20 (4637 3491 701 3378 3370)
  166.39.128.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.39.144.0/20 (4637 3491 701 3378 3370)
  166.39.144.0/21      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.39.152.0/21 (4637 3491 701 3378 3370)
  166.39.152.0/21      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.39.144.0/21 (4637 3491 701 3378 3370)
  166.39.208.0/20      4637 3491 701 3378 3370   
  166.40.112.0/20      4637 3491 701 3378 3370   
  166.40.161.0/24      4637 3491 701 3378 3370   
  166.40.162.0/23      4637 3491 701 3378 3370 + Announce - aggregate of 166.40.162.0/24 (4637 3491 701 3378 3370) and 166.40.163.0/24 (4637 3491 701 3378 3370)
  166.40.162.0/24      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.40.163.0/24 (4637 3491 701 3378 3370)
  166.40.163.0/24      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.40.162.0/24 (4637 3491 701 3378 3370)
  166.40.164.0/23      4637 3491 701 3378 3370   
  166.40.166.0/24      4637 3491 701 3378 3370   
  166.40.169.0/24      4637 3491 701 3378 3370   
  166.41.4.0/23        4637 3491 701 3378 3370   
  166.41.14.0/24       4637 3491 701 3378 3370   
  166.41.16.0/20       4637 3491 701 3378 3370   
  166.41.32.0/19       4637 3491 701 3378 3370   
  166.41.144.0/20      4637 3491 701 3378 3370   
  166.41.160.0/19      4637 3491 701 3378 3370 + Announce - aggregate of 166.41.160.0/20 (4637 3491 701 3378 3370) and 166.41.176.0/20 (4637 3491 701 3378 3370)
  166.41.160.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.41.176.0/20 (4637 3491 701 3378 3370)
  166.41.176.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.41.160.0/20 (4637 3491 701 3378 3370)
  166.44.176.0/20      4637 3491 701 3378 3370   
  166.45.192.0/18      4637 3491 701 3378 3370   
  166.46.112.0/20      4637 3491 701 3378 3370   
  166.46.160.0/19      4637 3491 701 3378 3370 + Announce - aggregate of 166.46.160.0/20 (4637 3491 701 3378 3370) and 166.46.176.0/20 (4637 3491 701 3378 3370)
  166.46.160.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.46.176.0/20 (4637 3491 701 3378 3370)
  166.46.176.0/20      4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.46.160.0/20 (4637 3491 701 3378 3370)
  166.46.192.0/20      4637 3491 701 3378 3370   
  166.47.144.0/20      4637 3491 701 3378 3370   
  166.47.160.0/20      4637 3491 701 3378 3370   
  166.47.240.0/20      4637 3491 701 3378 3370   
  166.50.64.0/19       4637 3491 701 3378 3370 + Announce - aggregate of 166.50.64.0/20 (4637 3491 701 3378 3370) and 166.50.80.0/20 (4637 3491 701 3378 3370)
  166.50.64.0/20       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.50.80.0/20 (4637 3491 701 3378 3370)
  166.50.80.0/20       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.50.64.0/20 (4637 3491 701 3378 3370)
  166.56.32.0/19       4637 3491 701 3378 3370   
  166.56.64.0/18       4637 3491 701 3378 3370 + Announce - aggregate of 166.56.64.0/19 (4637 3491 701 3378 3370) and 166.56.96.0/19 (4637 3491 701 3378 3370)
  166.56.64.0/19       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.56.96.0/19 (4637 3491 701 3378 3370)
  166.56.96.0/19       4637 3491 701 3378 3370 - Withdrawn - aggregated with 166.56.64.0/19 (4637 3491 701 3378 3370)
  166.58.254.0/23      4637 3491 701 3378 3370   
  199.249.16.0/23      4637 3491 701 3378 3370 + Announce - aggregate of 199.249.16.0/24 (4637 3491 701 3378 3370) and 199.249.17.0/24 (4637 3491 701 3378 3370)
  199.249.16.0/24      4637 3491 701 3378 3370 - Withdrawn - aggregated with 199.249.17.0/24 (4637 3491 701 3378 3370)
  199.249.17.0/24      4637 3491 701 3378 3370 - Withdrawn - aggregated with 199.249.16.0/24 (4637 3491 701 3378 3370)

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS3370   80 More Specifics   81 Total Advertisements   MCI-ASN - MCI
    146.1.192.0/20                146.1.0.0/16
    159.98.223.0/24               159.98.0.0/16
    165.122.0.0/19                165.122.0.0/16
    165.122.32.0/20               165.122.0.0/16
    165.122.64.0/19               165.122.0.0/16
    165.122.112.0/20              165.122.0.0/16
    165.122.115.0/24              165.122.0.0/16
    165.122.128.0/18              165.122.0.0/16
    165.122.192.0/18              165.122.0.0/16
    166.32.0.0/20                 166.32.0.0/16
    166.32.48.0/20                166.32.0.0/16
    166.32.56.0/24                166.32.0.0/16
    166.32.128.0/19               166.32.0.0/16
    166.32.160.0/20               166.32.0.0/16
    166.32.240.0/20               166.32.0.0/16
    166.33.0.0/19                 166.33.0.0/16
    166.33.32.0/20                166.33.0.0/16
    166.33.48.0/22                166.33.0.0/16
    166.33.56.0/21                166.33.0.0/16
    166.33.64.0/19                166.33.0.0/16
    166.33.96.0/19                166.33.0.0/16
    166.33.160.0/20               166.33.0.0/16
    166.33.176.0/20               166.33.0.0/16
    166.33.192.0/20               166.33.0.0/16
    166.34.64.0/18                166.34.0.0/16
    166.34.128.0/17               166.34.0.0/16
    166.35.128.0/17               166.35.0.0/16
    166.36.0.0/19                 166.36.0.0/16
    166.36.80.0/21                166.36.0.0/16
    166.36.88.0/21                166.36.0.0/16
    166.37.0.0/18                 166.37.0.0/16
    166.37.96.0/19                166.37.0.0/16
    166.37.192.0/19               166.37.0.0/16
    166.37.224.0/19               166.37.0.0/16
    166.38.34.0/24                166.38.0.0/16
    166.38.76.0/22                166.38.0.0/16
    166.38.96.0/21                166.38.0.0/16
    166.38.128.0/23               166.38.0.0/16
    166.38.160.0/21               166.38.0.0/16
    166.38.224.0/20               166.38.0.0/16
    166.39.0.0/20                 166.39.0.0/16
    166.39.64.0/20                166.39.0.0/16
    166.39.80.0/20                166.39.0.0/16
    166.39.116.0/22               166.39.0.0/16
    166.39.120.0/21               166.39.0.0/16
    166.39.128.0/20               166.39.0.0/16
    166.39.144.0/21               166.39.0.0/16
    166.39.152.0/21               166.39.0.0/16
    166.39.208.0/20               166.39.0.0/16
    166.40.112.0/20               166.40.0.0/16
    166.40.161.0/24               166.40.0.0/16
    166.40.162.0/24               166.40.0.0/16
    166.40.163.0/24               166.40.0.0/16
    166.40.164.0/23               166.40.0.0/16
    166.40.166.0/24               166.40.0.0/16
    166.40.169.0/24               166.40.0.0/16
    166.41.4.0/23                 166.41.0.0/16
    166.41.14.0/24                166.41.0.0/16
    166.41.16.0/20                166.41.0.0/16
    166.41.32.0/19                166.41.0.0/16
    166.41.144.0/20               166.41.0.0/16
    166.41.160.0/20               166.41.0.0/16
    166.41.176.0/20               166.41.0.0/16
    166.44.176.0/20               166.44.0.0/16
    166.45.192.0/18               166.45.0.0/16
    166.46.112.0/20               166.46.0.0/16
    166.46.160.0/20               166.46.0.0/16
    166.46.176.0/20               166.46.0.0/16
    166.46.192.0/20               166.46.0.0/16
    166.47.144.0/20               166.47.0.0/16
    166.47.160.0/20               166.47.0.0/16
    166.47.240.0/20               166.47.0.0/16
    166.50.64.0/20                166.50.0.0/16
    166.50.80.0/20                166.50.0.0/16
    166.56.32.0/19                166.56.0.0/16
    166.56.64.0/19                166.56.0.0/16
    166.56.96.0/19                166.56.0.0/16
    166.58.254.0/23               166.58.0.0/16
    199.249.16.0/24               199.249.16.0/20
    199.249.17.0/24               199.249.16.0/20

Whois Entry

whois: 402603

IANA has recorded AS3370 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3370\n             
             #
             # 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:       3369 - 3378
             ASName:         MCI-ASN
             ASHandle:       AS3369
             RegDate:        1994-01-06
             Updated:        2024-07-02
             Ref:            https://rdap.arin.net/registry/autnum/3369
             
             
             
             OrgName:        Verizon Business
             OrgId:          MCICS
             Address:        22001 Loudoun County Pkwy
             City:           Ashburn
             StateProv:      VA
             PostalCode:     20147
             Country:        US
             RegDate:        2006-05-30
             Updated:        2025-10-28
             Ref:            https://rdap.arin.net/registry/entity/MCICS
             
             
             OrgTechHandle: VIS1-ARIN
             OrgTechName:   Verizon Internet Services
             OrgTechPhone:  +1-800-243-6994 
             OrgTechEmail:  IPMGMT@verizon.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/VIS1-ARIN
             
             OrgDNSHandle: VZDNS1-ARIN
             OrgDNSName:   VZ-DNSADMIN
             OrgDNSPhone:  +1-800-900-0241 
             OrgDNSEmail:  dnsadmin@verizon.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/VZDNS1-ARIN
             
             OrgTechHandle: SWIPP9-ARIN
             OrgTechName:   SWIPPER
             OrgTechPhone:  +1-800-900-0241 
             OrgTechEmail:  IPMGMT@verizon.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SWIPP9-ARIN
             
             OrgAbuseHandle: ABUSE5603-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-800-900-0241 
             OrgAbuseEmail:  abuse@verizon.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5603-ARIN
             
             OrgAbuseHandle: ABUSE3-ARIN
             OrgAbuseName:   abuse
             OrgAbusePhone:  +1-800-900-0241 
             OrgAbuseEmail:  abuse-mail@verizonbusiness.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3-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.
             #