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AS3372 Verizon Business

MCI-ASN - Verizon Business · registered in the United States

IPv4 addresses424,70484 prefixes · 0.014% of announced IPv4
Rank in United States#186largest network in US by IPv4 space, of 18,338 · 0.03% of US
Rank worldwide#645of 79,396 networks with IPv4
IPv61 x /32 (65,536 x /48)1 prefixes
CountryUnited States18,679 ASNs registered there
Open AS3372 in ASN lookup Look up an IP in this network (63.39.160.1) All networks in United States

IPv4 prefixes

All 84 prefixes, in address order.

  • 63.39.160.0/19
  • 63.39.192.0/20
  • 63.39.240.0/20
  • 69.96.16.0/20
  • 69.96.32.0/19
  • 108.11.64.0/18
  • 151.205.32.0/19
  • 165.122.0.0/19
  • 165.122.112.0/20
  • 165.122.144.0/20
  • 165.122.160.0/19
  • 166.32.0.0/19
  • 166.32.48.0/21
  • 166.32.56.0/24
  • 166.32.57.0/24
  • 166.32.58.0/23
  • 166.32.60.0/22
  • 166.32.128.0/19
  • 166.32.160.0/20
  • 166.32.240.0/20
  • 166.33.0.0/21
  • 166.33.8.0/22
  • 166.33.12.0/22
  • 166.33.16.0/20
  • 166.33.32.0/19
  • 166.33.64.0/18
  • 166.33.160.0/19
  • 166.33.192.0/20
  • 166.34.128.0/17
  • 166.35.128.0/17
  • 166.36.0.0/19
  • 166.36.80.0/20
  • 166.37.0.0/18
  • 166.37.96.0/19
  • 166.38.34.0/24
  • 166.38.38.0/24
  • 166.38.52.0/23
  • 166.38.76.0/22
  • 166.38.160.0/22
  • 166.38.164.0/22
  • 166.38.168.0/21
  • 166.38.176.0/24
  • 166.38.178.0/23
  • 166.38.180.0/22
  • 166.38.188.0/22
  • 166.38.192.0/19
  • 166.38.224.0/20
  • 166.39.0.0/20
  • 166.39.64.0/19
  • 166.39.116.0/22
  • 166.39.120.0/21
  • 166.39.128.0/19
  • 166.39.208.0/20
  • 166.40.112.0/20
  • 166.40.161.0/24
  • 166.40.162.0/23
  • 166.40.164.0/22
  • 166.40.169.0/24
  • 166.40.172.0/23
  • 166.40.216.0/21
  • 166.41.16.0/20
  • 166.41.32.0/19
  • 166.41.144.0/20
  • 166.41.160.0/21
  • 166.41.168.0/22
  • 166.41.172.0/22
  • 166.41.176.0/20
  • 166.41.192.0/20
  • 166.43.144.0/20
  • 166.43.160.0/19
  • 166.46.112.0/20
  • 166.46.160.0/19
  • 166.46.192.0/20
  • 166.46.224.0/20
  • 166.47.144.0/20
  • 166.47.160.0/20
  • 166.47.240.0/20
  • 166.50.80.0/20
  • 166.56.32.0/19
  • 166.56.64.0/18
  • 166.56.248.0/23
  • 166.58.128.0/20
  • 166.58.224.0/20
  • 166.58.248.0/21

IPv6 prefixes

All 1 prefix.

  • 2600:40f3::/32

Other ASNs named Verizon Business

48 other networks use the same organisation name; together with AS3372 they announce 86,845,440 IPv4 addresses. Largest 30 shown.

ASNNameIPv4 addresses
AS701UUNET - Verizon Business US40,608,768
AS6167CELLCO-PART - Verizon Business US18,082,816
AS22394CELLCO - Verizon Business US12,308,992
AS2828XO-AS15 - Verizon Business US6,535,680
AS702UUNET - Verizon Business US5,716,992
AS3371MCI-ASN - Verizon Business US1,153,280
AS703UUNET - Verizon Business US694,784
AS7046RFC2270-UUNET-CUSTOMER - Verizon Business US520,448
AS12079CELLCO-PART - Verizon Business US165,120
AS14551UUNET-SA - Verizon Business US146,944
AS6984NYNEX-AS - Verizon Business US89,856
AS3377MCI-ASN - Verizon Business US78,336
AS3378MCI-ASN - Verizon Business US64,256
AS3369MCI-ASN - Verizon Business US49,920
AS3375MCI-ASN - Verizon Business US33,280
AS6256CELLCO-PART - Verizon Business US24,064
AS3376MCI-ASN - Verizon Business US21,504
AS1699ANS-1699-AS - Verizon Business US19,456
AS17373MCI-COV - Verizon Business US16,640
AS1661ANS-ATLANTA - Verizon Business US11,520
AS6976VZN-VOL2 - Verizon Business US11,008
AS6995VRIS-6995 - Verizon Business US8,960
AS3373MCI-ASN - Verizon Business US8,192
AS3374MCI-ASN - Verizon Business US6,144
AS1321ANSBB-ASNNET-1 - Verizon Business US5,888
AS19027XO-ASN11 - Verizon Business US5,120
AS1339ANSBB-ASNNET-1 - Verizon Business US4,352
AS1689ANS-1689-AS - Verizon Business US3,840
AS7021VRIS-7021 - Verizon Business US3,840
AS33052VZUNET - Verizon Business US3,328

Similar-sized networks in United States

ASNNameIPv4 addresses
AS398101#183 GO-DADDY-COM-LLC - GoDaddy.com, LLC433,152
AS46606#184 UNIFIEDLAYER-AS-1 - Unified Layer432,384
AS8001#185 COLOGIX - Cologix, Inc425,472
AS7287#187 PBI-NET-BLK2 - AT&T Enterprises, LLC420,864
AS6559#188 NCIH - State of NC - State Telecommunications Services410,368
AS62904#189 AS62904 - Eonix Corporation409,344

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources