| 63.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 63.64.0.0/10 | WHOIS (ARIN) | Verizon Business | US |
| 63.64.0.0/10 | ARIN assigned | — | US |
| 63.80.0.0/12 | BGP route | AS701 Verizon Business | — |
| 63.91.192.0/18 | BGP route | AS3371 Verizon Business | — |
| 63.92.224.0/19 | WHOIS (ARIN) | APPLE INC | US |
| 63.83.160.0/20 | WHOIS (ARIN) | Southern Internet Se | US |
| 63.87.112.0/20 | BGP route | AS46303 POPP.com, Inc. | — |
| 63.87.112.0/20 | WHOIS (ARIN) | POPP.com, Inc. | US |
| 63.93.80.0/20 | WHOIS (ARIN) | MANHATTAN TELECOMMUNICATIONS C | US |
| 63.93.144.0/20 | WHOIS (ARIN) | Charter Communications LLC | US |
| 63.95.96.0/20 | WHOIS (ARIN) | Connect Holdings | US |
| 63.80.80.0/21 | WHOIS (ARIN) | Ameri Market Tech, Inc. | US |
| 63.82.0.0/21 | WHOIS (ARIN) | Dialink Corporation | US |
| 63.82.48.0/21 | WHOIS (ARIN) | LANSET AMERICA CORPORATION | US |
| 63.82.88.0/21 | WHOIS (ARIN) | San Marcos Internet | US |
| 63.83.40.0/21 | WHOIS (ARIN) | NAG Pakistan Ltd. | US |
| 63.83.72.0/21 | WHOIS (ARIN) | LANSET AMERICA CORPORATION | US |
| 63.83.176.0/21 | WHOIS (ARIN) | Southern Internet Se | US |
| 63.84.40.0/21 | WHOIS (ARIN) | Sigecom OC3 | US |
| 63.84.168.0/21 | WHOIS (ARIN) | 2coolweb | US |
| 63.90.88.0/21 | WHOIS (ARIN) | Armstrong Utilities, | US |
| 63.91.16.0/21 | WHOIS (ARIN) | Network Tool and Die Company | US |
| 63.92.64.0/21 | BGP route | AS998 HypeStatus Inc | — |
| 63.92.64.0/21 | WHOIS (ARIN) | Microcast, Inc | US |
| 63.92.80.0/21 | WHOIS (ARIN) | Consonus | US |
| 63.93.136.0/21 | WHOIS (ARIN) | HSA Corporation | US |
| 63.94.24.0/21 | WHOIS (ARIN) | Computer Solutions Corp | US |
| 63.95.64.0/21 | WHOIS (ARIN) | Harte-Hanks Response Management/Austin L.P. | US |
| 63.80.8.0/22 | WHOIS (ARIN) | VICON.net | US |
| 63.80.16.0/22 | WHOIS (ARIN) | Acme Widget L. P. | US |
| 63.80.28.0/22 | WHOIS (ARIN) | Tellme Networks | US |
| 63.81.68.0/22 | WHOIS (ARIN) | Trip.com | US |
| 63.81.148.0/22 | WHOIS (ARIN) | Continuus Software C | US |
| 63.81.244.0/22 | WHOIS (ARIN) | I-Land Internet Solutions | US |
| 63.82.12.0/22 | WHOIS (ARIN) | STSN | US |
| 63.82.244.0/22 | WHOIS (ARIN) | Wan Communications | US |
| 63.83.240.0/22 | WHOIS (ARIN) | Chapel Communicatons, Inc | US |
| 63.84.52.0/22 | WHOIS (ARIN) | Communication Options Inc. | US |
| 63.84.64.0/22 | BGP route | AS28502 Axtel, S.A.B. de C.V. | — |
| 63.84.64.0/22 | WHOIS (ARIN) | BBG Communications, Inc. | — |
| 63.84.72.0/22 | WHOIS (ARIN) | BAXALTA US INC | US |
| 63.84.140.0/22 | WHOIS (ARIN) | Telit IoT Platforms, LLC | — |
| 63.84.220.0/22 | BGP route | AS13462 Institute of Electrical and Electronics Engineers, Inc | — |
| 63.84.220.0/22 | WHOIS (ARIN) | IEEE Computer Societ | US |
| 63.84.236.0/22 | WHOIS (ARIN) | Andinatel S.A. | EC |
| 63.85.60.0/22 | WHOIS (ARIN) | Gridley Enterprises, Inc | US |
| 63.85.88.0/22 | BGP route | AS30462 NexGen Integrated Communications LLC | — |
| 63.85.88.0/22 | WHOIS (ARIN) | NexGen Integrated Communications LLC | — |
| 63.85.116.0/22 | WHOIS (ARIN) | MAXIMUM INTERNET SERVICES OF MINNESOTA, INC. | US |
| 63.86.8.0/22 | BGP route | AS30462 NexGen Integrated Communications LLC | — |
| 63.86.8.0/22 | WHOIS (ARIN) | NexGen Integrated Communications LLC | — |
| 63.86.120.0/22 | BGP route | AS46303 POPP.com, Inc. | — |
| 63.86.120.0/22 | WHOIS (ARIN) | POPP.com, Inc. | US |
| 63.87.68.0/22 | WHOIS (ARIN) | Hewitt Associates LLC | US |
| 63.87.204.0/22 | WHOIS (ARIN) | The Door to the Internet | US |
| 63.88.16.0/22 | WHOIS (ARIN) | UUNET Employee | US |
| 63.88.36.0/22 | BGP route | AS40412 PA House of Representatives - Democratic Caucus | — |
| 63.88.36.0/22 | WHOIS (ARIN) | PA House of Representatives - Democratic Caucus | US |
| 63.88.44.0/22 | WHOIS (ARIN) | Third Planet Interne | US |
| 63.88.240.0/22 | WHOIS (ARIN) | Viviance New Educati | US |
| 63.89.76.0/22 | BGP route | AS20088 CURRENT COMPONENTS INC | — |
| 63.90.76.0/22 | BGP route | AS15089 Massachusetts Mutual Life Insurance Company | — |
| 63.80.26.0/23 | BGP route | AS701 Verizon Business | — |
| 63.80.36.0/23 | BGP route | AS701 Verizon Business | — |
| 63.80.136.0/23 | BGP route | AS22135 Skechers USA | — |
| 63.81.108.0/23 | BGP route | AS25967 OPEN ACCESS TECHNOLOGY INTERNATIONAL, INC. | — |
| 63.84.72.0/23 | BGP route | AS21660 Baxalta Incorporated | — |
| 63.84.140.0/23 | BGP route | AS14414 Telit IoT Platforms, LLC | — |
| 63.85.42.0/23 | BGP route | AS10388 NETinc | — |
| 63.86.188.0/23 | BGP route | AS26097 Labyrinth Solutions Inc | — |
| 63.87.16.0/23 | BGP route | AS1661 Verizon Business | — |
| 63.88.10.0/23 | BGP route | AS12234 Verizon Business | — |
| 63.88.42.0/23 | BGP route | AS14473 Inside The Internet, Inc | — |
| 63.88.62.0/23 | BGP route | AS32058 Sinclair Broadcast Group, Inc. | — |
| 63.90.66.0/23 | BGP route | AS15227 LUMOS Networks, Inc. | — |
| 63.92.148.0/23 | BGP route | AS54646 Hardy Telecommunications | — |
| 63.94.92.0/23 | BGP route | AS14717 EZE Castle Integration Inc. | — |
| 63.94.94.0/23 | BGP route | AS14717 EZE Castle Integration Inc. | — |
| 63.95.246.0/23 | BGP route | AS17119 Kampung Communications | — |
| 63.80.38.0/24 | BGP route | AS15572 Verizon UK Limited | — |
| 63.80.50.0/24 | BGP route | AS32688 THE GOLDEN 1 CREDIT UNION | — |
| 63.80.52.0/24 | BGP route | AS11988 CEVA INC. | — |
| 63.80.88.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.89.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.98.0/24 | BGP route | AS30548 ARUBA NETWORKS, INC. | — |
| 63.80.105.0/24 | BGP route | AS54546 Ferrari North America, Inc. | — |
| 63.80.125.0/24 | BGP route | AS55182 Texas Capital Bank, N.A. | — |
| 63.80.135.0/24 | BGP route | AS36690 R Systems Inc. | — |
| 63.80.162.0/24 | BGP route | AS15572 Verizon UK Limited | — |
| 63.80.184.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.185.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.186.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.187.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.188.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.189.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.190.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.191.0/24 | BGP route | AS16578 Lanset America Corporation | — |
| 63.80.198.0/24 | BGP route | AS32319 Marqeta, Inc. | — |
| 63.80.202.0/24 | BGP route | AS32688 THE GOLDEN 1 CREDIT UNION | — |
| 63.80.215.0/24 | BGP route | AS395753 KKR | — |