AS701 — UUNET

Network type: residential

AS701 announces 4,547 IPv4 prefixes covering 40,584,704 addresses and 242 IPv6 prefixes.

About this network

One of the largest and oldest Tier 1 backbones on the internet — the former UUNET / MCI network, now Verizon Business (UUNET, AS701).

What it's used for

• Global IP transit and enterprise connectivity: Verizon's business/wholesale backbone plus a large US business-access footprint.
• Reaches the entire internet without buying transit (Tier 1).

Notable

• Carries an enormous amount of address space and appears in a large share of internet routing paths — a core network other networks depend on.
• Verizon splits its backbone across regional ASNs; AS702 covers Europe and AS703 Asia-Pacific, all descended from UUNET.

Interesting

• UUNET was one of the first commercial ISPs (founded 1987) and helped privatize internet access as the NSFNET era ended.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 23.29.96.0/20
• 23.183.88.0/24
• 63.0.0.0/12
• 63.16.0.0/14
• 63.20.0.0/15
• 63.22.0.0/16
• 63.23.0.0/19
• 63.23.32.0/23
• 63.23.35.0/24
• 63.23.36.0/22
• 63.23.40.0/21
• 63.23.51.0/24
• 63.23.52.0/22
• 63.23.56.0/21
• 63.23.67.0/24
• 63.23.68.0/22
• 63.23.72.0/21
• 63.23.83.0/24
• 63.23.84.0/22
• 63.23.88.0/21
• 63.23.96.0/19
• 63.23.128.0/17
• 63.24.0.0/17
• 63.24.128.0/18
• 63.24.192.0/21
• 63.24.200.0/23
• 63.24.208.0/20
• 63.24.224.0/19
• 63.25.0.0/16
• 63.26.2.0/24
• 63.26.16.0/20
• 63.26.32.0/19
• 63.26.64.0/18
• 63.26.128.0/17
• 63.27.50.0/23
• 63.27.52.0/22
• 63.27.56.0/21
• 63.27.64.0/18
• 63.27.128.0/17
• 63.28.0.0/14
• 63.36.0.0/15
• 63.38.0.0/18
• 63.38.64.0/19
• 63.38.96.0/20
• 63.38.126.0/24
• 63.38.128.0/24
• 63.38.130.0/23
• 63.38.134.0/23
• 63.38.136.0/21
• 63.38.144.0/20
• 63.38.160.0/19
• 63.38.192.0/18
• 63.48.0.0/14
• 63.52.0.0/15
• 63.56.0.0/15
• 63.60.0.0/14
• 63.64.0.0/20
• 63.64.16.0/21
• 63.64.25.0/24
• 63.64.26.0/23
• 63.64.28.0/22
• 63.64.32.0/22
• 63.64.38.0/23
• 63.64.40.0/24
• 63.64.42.0/23
• 63.64.44.0/22
• 63.64.48.0/22
• 63.64.52.0/23
• 63.64.55.0/24
• 63.64.56.0/22
• 63.64.62.0/23
• 63.64.64.0/21
• 63.64.72.0/24
• 63.64.74.0/24
• 63.64.76.0/22
• 63.64.80.0/22
• 63.64.84.0/24
• 63.64.86.0/23
• 63.64.88.0/21
• 63.64.96.0/21
• 63.64.104.0/23
• 63.64.108.0/22
• 63.64.112.0/20
• 63.64.128.0/23
• 63.64.132.0/22
• 63.64.136.0/21
• 63.64.144.0/20
• 63.64.160.0/19
• 63.64.192.0/18
• 63.65.0.0/20
• 63.65.16.0/22
• 63.65.20.0/23
• 63.65.23.0/24
• 63.65.24.0/24
• 63.65.26.0/23
• 63.65.28.0/22
• 63.65.32.0/19
• 63.65.64.0/18
• 63.65.128.0/20
• 63.65.144.0/21

and 4,689 more.

Upstream networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.
• AS3257 GTT Communications Inc.
• AS577 Bell Canada
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS7018 AT&T Enterprises, LLC
• AS17639 Converge ICT Solutions Inc.
• AS1273 IDDQD-AS
• AS3491 PCCW Global (HK) Ltd.
• AS3320 Deutsche Telekom AG
• AS5511 Orange S.A.
• AS2497 Internet Initiative Japan Inc.
• AS4637 Telstra Global
• AS6830 Liberty Global Europe Holding B.V.

Downstream networks

• AS11664 Techtel LMDS Comunicaciones Interactivas S.A.
• AS14080 Telmex Colombia S.A.
• AS22394 Verizon Business
• AS8151 UNINET
• AS7046 Verizon Business
• AS7713 PT Telekomunikasi Indonesia
• AS5650 Frontier Communications of America, Inc.
• AS4837 CHINA UNICOM China169 Backbone
• AS17676 SoftBank Corp.
• AS2828 Verizon Business
• AS702 Verizon Business
• AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA
• AS6256 Verizon Business
• AS16509 Amazon.com, Inc.
• AS10396 DATACOM CARIBE, INC.
• AS6984 Verizon Business
• AS9318 SK Broadband Co Ltd
• AS9658 Eastern Telecoms Phils., Inc.
• AS22460 PepsiCo, Inc.
• AS12252 America Movil Peru S.A.C.
• AS3378 Verizon Business
• AS6995 Verizon Business
• AS3738 State Street Bank and Trust Company
• AS1699 Verizon Business
• AS36692 Cisco OpenDNS, LLC

Adjacent networks

• AS22394 Verizon Business
• AS577 Bell Canada
• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS1299 Arelion Sweden AB
• AS14080 Telmex Colombia S.A.
• AS2914 NTT America, Inc.
• AS11664 Techtel LMDS Comunicaciones Interactivas S.A.
• AS4134 No.31,Jin-rong Street
• AS4837 CHINA UNICOM China169 Backbone
• AS7018 AT&T Enterprises, LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS2497 Internet Initiative Japan Inc.
• AS3257 GTT Communications Inc.
• AS17639 Converge ICT Solutions Inc.
• AS7046 Verizon Business
• AS17676 SoftBank Corp.
• AS8151 UNINET
• AS9318 SK Broadband Co Ltd
• AS3378 Verizon Business
• AS3491 PCCW Global (HK) Ltd.
• AS7713 PT Telekomunikasi Indonesia
• AS5650 Frontier Communications of America, Inc.
• AS1273 IDDQD-AS