[REN-BGP-stats-all] IPv4 R&E Routing Table Report - RouteViews PacWave (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Dec 9 22:40:50 UTC 2024
IPv4 R&E Routing Table Report 22:40 GMT Mon 09 Dec, 2024
IPv4 BGP Table (R&E) as seen at RouteViews PacWave.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/PacWave/
Analysis Summary
----------------
BGP routing table entries examined: 31983
Prefixes after maximum aggregation (per Origin AS): 15473
Deaggregation factor: 2.07
Unique aggregates announced (without unneeded subnets): 18473
Total ASes present in the Internet Routing Table: 2843
Prefixes per ASN: 11.25
Origin-only ASes present in the Internet Routing Table: 2461
Origin ASes announcing only one prefix: 1095
Transit ASes present in the Internet Routing Table: 382
Transit-only ASes present in the Internet Routing Table: 60
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 27
Max AS path prepend of ASN (138136) 20
Prefixes from unregistered ASNs in the Routing Table: 4
Number of instances of unregistered ASNs: 4
Number of 32-bit ASNs allocated by the RIRs: 45981
Number of 32-bit ASNs visible in the Routing Table: 687
Prefixes from 32-bit ASNs in the Routing Table: 4882
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 8
Number of addresses announced to Internet: 345650944
Equivalent to 20 /8s, 154 /16s and 55 /24s
Percentage of available address space announced: 9.3
Percentage of allocated address space announced: 9.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 4257
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4663
Total APNIC prefixes after maximum aggregation: 2270
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4865
Unique aggregates announced from the APNIC address blocks: 2840
APNIC Region origin ASes present in the Internet Routing Table: 565
APNIC Prefixes per ASN: 8.61
APNIC Region origin ASes announcing only one prefix: 241
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 211
Number of APNIC addresses announced to Internet: 47241728
Equivalent to 2 /8s, 208 /16s and 218 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 21122
Total ARIN prefixes after maximum aggregation: 9560
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 20352
Unique aggregates announced from the ARIN address blocks: 11110
ARIN Region origin ASes present in the Internet Routing Table: 1336
ARIN Prefixes per ASN: 15.23
ARIN Region origin ASes announcing only one prefix: 465
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 225
Number of ARIN addresses announced to Internet: 208994048
Equivalent to 12 /8s, 116 /16s and 255 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3650
Total RIPE prefixes after maximum aggregation: 2925
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 4202
Unique aggregates announced from the RIPE address blocks: 3563
RIPE Region origin ASes present in the Internet Routing Table: 671
RIPE Prefixes per ASN: 6.26
RIPE Region origin ASes announcing only one prefix: 301
RIPE Region transit ASes present in the Internet Routing Table: 108
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 157
Number of RIPE addresses announced to Internet: 82072320
Equivalent to 4 /8s, 228 /16s and 83 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1388
Total LACNIC prefixes after maximum aggregation: 541
LACNIC Deaggregation factor: 2.57
Prefixes being announced from the LACNIC address blocks: 1393
Unique aggregates announced from the LACNIC address blocks: 726
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 8.87
LACNIC Region origin ASes announcing only one prefix: 56
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4727040
Equivalent to 0 /8s, 72 /16s and 33 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1156
Total AfriNIC prefixes after maximum aggregation: 173
AfriNIC Deaggregation factor: 6.68
Prefixes being announced from the AfriNIC address blocks: 1163
Unique aggregates announced from the AfriNIC address blocks: 226
AfriNIC Region origin ASes present in the Internet Routing Table: 52
AfriNIC Prefixes per ASN: 22.37
AfriNIC Region origin ASes announcing only one prefix: 32
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2611712
Equivalent to 0 /8s, 39 /16s and 218 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 592 2200 462 SINET-AS Research Organization of Informa
7497 446 180 24 CSTNET-AS-AP Computer Network Information
1237 191 74 145 KREONET-AS-KR KISTI, KR
58647 181 18 2 KAGAWAU-AS Kagawa University, JP
7575 171 313 114 AARNET-AS-AP Australian Academic and Rese
4538 139 4192 71 ERX-CERNET-BKB China Education and Resear
55824 132 18 18 NKN-CORE-NW NKN Core Network, IN
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
2697 60 4 35 ERX-ERNET-AS Education and Research Netwo
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5088 4876 2402 AMAZON-02, US
396982 2886 3655 434 GOOGLE-CLOUD-PLATFORM, US
714 1152 4392 5 APPLE-ENGINEERING, US
14618 1017 4484 767 AMAZON-AES, US
15169 922 2011 69 GOOGLE, US
8075 691 16015 581 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 512 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 202 616 171 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 249 DFN Verein zur Foerderung eines Deutschen
786 186 1767 183 JANET Jisc Services Limited, GB
8895 132 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
8987 81 226 58 AMAZON EXPANSION, IE
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 158 178 41 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 53 5 19 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
4270 46 16 1 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 550 82 3 KENET-AS, KE
2018 380 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 15 8 2 UG-AS, GH
327700 13 16 1 MoRENet, MZ
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5088 4876 2402 AMAZON-02, US
396982 2886 3655 434 GOOGLE-CLOUD-PLATFORM, US
714 1152 4392 5 APPLE-ENGINEERING, US
14618 1017 4484 767 AMAZON-AES, US
15169 922 2011 69 GOOGLE, US
8075 691 16015 581 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 592 2200 462 SINET-AS Research Organization of Informa
36914 550 82 3 KENET-AS, KE
2152 512 507 99 CENIC-2152, US
7497 446 180 24 CSTNET-AS-AP Computer Network Information
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
396982 2886 2452 GOOGLE-CLOUD-PLATFORM, US
714 1152 1147 APPLE-ENGINEERING, US
15169 922 853 GOOGLE, US
36914 550 547 KENET-AS, KE
7497 446 422 CSTNET-AS-AP Computer Network Information Cente
2152 512 413 CENIC-2152, US
2018 380 309 TENET-1, ZA
14618 1017 250 AMAZON-AES, US
5786 198 197 UPRENET, PR
58647 181 179 KAGAWAU-AS Kagawa University, JP
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65208 PRIVATE 63.225.1.0/24 11570 AS11570, US
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
65208 PRIVATE 216.161.32.0/23 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 101 WASH-NSF-AS, US
103.165.160.0/24 Origin: 16509 AMAZON-02, US
103.165.160.0/24 Transit: 101 WASH-NSF-AS, US
103.177.50.0/23 Origin: 396982 GOOGLE-CLOUD-PLATFORM, US
103.177.50.0/23 Transit: 15169 GOOGLE, US
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:1 /9:3 /10:3 /11:11 /12:38
/13:52 /14:117 /15:235 /16:2423 /17:629 /18:598
/19:868 /20:3038 /21:1569 /22:2278 /23:2454 /24:17666
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 863 5088 AMAZON-02, US
36914 526 550 KENET-AS, KE
14618 325 1017 AMAZON-AES, US
15169 268 922 GOOGLE, US
396982 260 2886 GOOGLE-CLOUD-PLATFORM, US
8895 127 132 ISU Internet Services Unit ISU, SA
8075 123 691 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 61 512 CENIC-2152, US
23024 37 95 OCDE, US
32440 37 63 LONI, US
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 2:1 3:260 4:2 5:24 6:4
8:28 12:2 13:175 14:93 15:137 16:126
17:306 18:320 23:125 24:3 31:6 34:22
35:85 36:1 37:8 38:11 40:5 41:223
42:11 43:2 44:6 45:89 46:14 47:1
49:10 50:14 52:860 54:187 57:10 58:1
59:19 60:5 61:3 62:15 63:46 64:178
65:49 66:118 67:78 68:27 69:67 70:38
71:37 72:21 74:162 75:1 76:49 77:12
78:3 79:10 80:13 81:26 82:7 83:7
84:7 85:51 86:5 87:4 88:1 89:23
91:60 92:9 93:45 94:7 95:3 96:6
97:1 98:15 99:79 101:2 102:16 103:354
104:252 107:42 108:171 109:8 111:22 113:5
114:32 115:1 116:14 117:66 118:33 119:23
121:28 122:11 123:8 124:42 125:5 128:57
129:42 130:169 131:81 132:64 133:154 134:111
135:7 136:312 137:121 138:73 139:22 140:50
141:15 142:349 143:40 144:74 145:8 146:138
147:82 148:206 149:20 150:48 151:51 152:154
153:14 154:40 155:107 156:136 157:41 158:44
159:162 160:36 161:53 162:112 163:76 164:29
165:78 166:7 167:40 168:186 169:15 170:204
171:1 172:125 173:126 174:2 175:16 176:6
177:6 178:3 179:14 180:16 181:1 182:11
184:9 185:149 186:3 187:21 188:19 189:3
190:18 191:13 192:1694 193:300 194:132 195:82
196:147 197:338 198:630 199:405 200:286 201:37
202:663 203:462 204:458 205:216 206:251 207:352
208:170 209:270 210:219 211:3 212:178 213:23
214:8 216:259 217:14 218:23 219:6 220:16
222:2 223:15
End of report
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