[REN-BGP-stats-all] IPv4 R&E Routing Table Report - RouteViews PacWave (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Dec 15 22:40:43 UTC 2023
IPv4 R&E Routing Table Report 22:40 GMT Fri 15 Dec, 2023
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: 29234
Prefixes after maximum aggregation (per Origin AS): 14488
Deaggregation factor: 2.02
Unique aggregates announced (without unneeded subnets): 17043
Total ASes present in the Internet Routing Table: 2836
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 2451
Origin ASes announcing only one prefix: 1101
Transit ASes present in the Internet Routing Table: 385
Transit-only ASes present in the Internet Routing Table: 65
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 17
Max AS path prepend of ASN ( 47805) 11
Prefixes from unregistered ASNs in the Routing Table: 20
Number of instances of unregistered ASNs: 20
Number of 32-bit ASNs allocated by the RIRs: 43226
Number of 32-bit ASNs visible in the Routing Table: 663
Prefixes from 32-bit ASNs in the Routing Table: 4723
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: 10
Number of addresses announced to Internet: 313609728
Equivalent to 18 /8s, 177 /16s and 78 /24s
Percentage of available address space announced: 8.5
Percentage of allocated address space announced: 8.5
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: 3994
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4632
Total APNIC prefixes after maximum aggregation: 2292
APNIC Deaggregation factor: 2.02
Prefixes being announced from the APNIC address blocks: 4786
Unique aggregates announced from the APNIC address blocks: 2747
APNIC Region origin ASes present in the Internet Routing Table: 547
APNIC Prefixes per ASN: 8.75
APNIC Region origin ASes announcing only one prefix: 234
APNIC Region transit ASes present in the Internet Routing Table: 60
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 211
Number of APNIC addresses announced to Internet: 47121408
Equivalent to 2 /8s, 207 /16s and 4 /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: 18195
Total ARIN prefixes after maximum aggregation: 8532
ARIN Deaggregation factor: 2.13
Prefixes being announced from the ARIN address blocks: 17754
Unique aggregates announced from the ARIN address blocks: 10026
ARIN Region origin ASes present in the Internet Routing Table: 1306
ARIN Prefixes per ASN: 13.59
ARIN Region origin ASes announcing only one prefix: 465
ARIN Region transit ASes present in the Internet Routing Table: 169
Average ARIN Region AS path length visible: 3.0
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 207
Number of ARIN addresses announced to Internet: 191601664
Equivalent to 11 /8s, 107 /16s and 156 /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, 393216-401308
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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 3659
Total RIPE prefixes after maximum aggregation: 2926
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3952
Unique aggregates announced from the RIPE address blocks: 3304
RIPE Region origin ASes present in the Internet Routing Table: 697
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 312
RIPE Region transit ASes present in the Internet Routing Table: 102
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 149
Number of RIPE addresses announced to Internet: 67664128
Equivalent to 4 /8s, 8 /16s and 121 /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,
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: 1389
Total LACNIC prefixes after maximum aggregation: 545
LACNIC Deaggregation factor: 2.55
Prefixes being announced from the LACNIC address blocks: 1390
Unique aggregates announced from the LACNIC address blocks: 727
LACNIC Region origin ASes present in the Internet Routing Table: 164
LACNIC Prefixes per ASN: 8.48
LACNIC Region origin ASes announcing only one prefix: 62
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66
Number of LACNIC addresses announced to Internet: 4441344
Equivalent to 0 /8s, 67 /16s and 197 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 1339
Total AfriNIC prefixes after maximum aggregation: 176
AfriNIC Deaggregation factor: 7.61
Prefixes being announced from the AfriNIC address blocks: 1342
Unique aggregates announced from the AfriNIC address blocks: 229
AfriNIC Region origin ASes present in the Internet Routing Table: 53
AfriNIC Prefixes per ASN: 25.32
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2777088
Equivalent to 0 /8s, 42 /16s and 96 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 593 2162 465 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
1237 193 74 142 KREONET-AS-KR KISTI, KR
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 329 119 AARNET-AS-AP Australian Academic and Re
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 127 19 17 NKN-CORE-NW NKN Core Network, IN
4621 69 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 64 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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 4547 4640 2070 AMAZON-02, US
396982 2736 3637 383 GOOGLE-CLOUD-PLATFORM, US
14618 843 4032 635 AMAZON-AES, US
15169 834 2001 62 GOOGLE, US
8075 407 12793 344 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 382 507 96 CSUNET-NW, US
668 204 652 173 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
36492 165 12 38 GOOGLEWIFI, US
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 Deutsch
786 185 1767 182 JANET Jisc Services Limited, GB
8895 131 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch
1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 79 676 75 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
553 76 462 76 BELWUE BelWue-Koordination, DE
2200 63 598 58 FR-RENATER Reseau National de telecommu
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 210 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 67 Universidad Juarez Autonoma de Tabasco,
11340 98 24 48 Red Universitaria Nacional, CL
271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 50 17 3 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
61468 43 3 14 CEDIA, EC
2715 42 67 32 Fundacao Carlos Chagas Filho de Amparo
28614 38 2 2 Fundacao Universidade Regional de Blume
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
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 527 82 3 KENET-AS, KE
2018 377 319 71 TENET-1, ZA
327687 160 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 14 8 2 UG-AS, GH
37215 12 8 1 MAREN, MW
37501 11 49 6 UOFS, 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 4547 4640 2070 AMAZON-02, US
396982 2736 3637 383 GOOGLE-CLOUD-PLATFORM, US
14618 843 4032 635 AMAZON-AES, US
15169 834 2001 62 GOOGLE, US
2907 593 2162 465 SINET-AS Research Organization of Infor
36914 527 82 3 KENET-AS, KE
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
8075 407 12793 344 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 382 507 96 CSUNET-NW, US
2018 377 319 71 TENET-1, ZA
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 2736 2353 GOOGLE-CLOUD-PLATFORM, US
15169 834 772 GOOGLE, US
36914 527 524 KENET-AS, KE
7497 437 414 CSTNET-AS-AP Computer Network Information Cente
2018 377 306 TENET-1, ZA
2152 382 286 CSUNET-NW, US
14618 843 208 AMAZON-AES, US
5786 197 196 UPRENET, PR
58647 180 178 KAGAWAU-AS Kagawa University, JP
1916 210 168 Rede Nacional de Ensino e Pesquisa, BR
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 RESERVED, ZZ
65101 PRIVATE 64.54.9.0/24 5653 UCSF, US
65101 PRIVATE 64.54.18.0/24 5653 UCSF, US
65101 PRIVATE 64.54.128.0/24 5653 UCSF, US
65101 PRIVATE 64.54.149.0/24 5653 UCSF, US
65101 PRIVATE 64.54.162.0/24 5653 UCSF, US
65101 PRIVATE 64.54.196.0/24 5653 UCSF, US
65101 PRIVATE 64.54.197.0/24 5653 UCSF, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
45.42.252.0/22 Origin: 16509 AMAZON-02, US
45.42.252.0/22 Transit: 101 WASH-NSF-AS, US
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 101 WASH-NSF-AS, US
170.39.88.0/24 Origin: 14618 AMAZON-AES, US
170.39.88.0/24 Transit: 16509 AMAZON-02, US
173.249.168.0/22 Origin: 16509 AMAZON-02, US
173.249.168.0/22 Transit: 101 WASH-NSF-AS, US
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
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 /8:0 /9:1 /10:4 /11:11 /12:33
/13:46 /14:112 /15:210 /16:2246 /17:577 /18:532
/19:779 /20:2880 /21:1318 /22:2062 /23:2161 /24:16262
/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 731 4547 AMAZON-02, US
36914 512 527 KENET-AS, KE
15169 276 834 GOOGLE, US
14618 267 843 AMAZON-AES, US
396982 202 2736 GOOGLE-CLOUD-PLATFORM, US
8895 126 131 ISU Internet Services Unit ISU, SA
8075 83 407 MICROSOFT-CORP-MSN-AS-BLOCK, US
23024 52 109 OCDE, US
2152 39 382 CSUNET-NW, US
32440 38 62 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 3:141 4:2 5:22 6:4
8:28 12:1 13:180 14:89 15:132 16:112
18:272 23:124 24:3 31:9 34:24 35:58
38:8 40:6 41:227 42:10 43:2 44:9
45:73 46:15 47:1 49:9 50:12 52:880
54:265 58:2 59:19 60:5 61:3 62:16
63:43 64:188 65:42 66:102 67:68 68:22
69:51 70:44 71:46 72:18 74:152 76:49
77:11 78:3 79:10 80:13 81:25 82:7
83:7 84:13 85:32 86:4 87:4 88:1
89:19 91:62 92:7 93:4 94:8 95:2
96:6 97:2 98:14 99:79 101:3 102:36
103:335 104:236 107:49 108:165 109:10 111:17
113:4 114:31 115:1 116:10 117:61 118:32
119:18 121:28 122:11 123:8 124:40 125:5
128:87 129:53 130:153 131:81 132:60 133:155
134:111 135:4 136:300 137:151 138:15 139:19
140:46 141:9 142:290 143:36 144:71 145:5
146:126 147:75 148:205 149:17 150:50 151:28
152:137 153:14 154:30 155:81 156:70 157:30
158:45 159:157 160:36 161:45 162:124 163:81
164:25 165:58 166:2 167:27 168:165 169:12
170:194 171:1 172:117 173:125 174:2 175:18
176:14 177:6 178:2 179:13 180:15 181:1
182:1 184:3 185:138 186:3 187:17 188:20
189:3 190:18 191:12 192:1596 193:325 194:132
195:100 196:200 197:327 198:606 199:375 200:325
201:37 202:639 203:424 204:420 205:186 206:223
207:261 208:153 209:215 210:195 211:14 212:166
213:17 214:8 216:212 217:13 218:22 219:5
220:16 222:2 223:14
End of report
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