[REN-BGP-stats-all] IPv4 R&E Routing Table Report - RouteViews PacWave (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Oct 26 22:40:38 UTC 2023
IPv4 R&E Routing Table Report 22:40 GMT Thu 26 Oct, 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: 18543
Prefixes after maximum aggregation (per Origin AS): 8522
Deaggregation factor: 2.18
Unique aggregates announced (without unneeded subnets): 10558
Total ASes present in the Internet Routing Table: 1162
Prefixes per ASN: 15.96
Origin-only ASes present in the Internet Routing Table: 985
Origin ASes announcing only one prefix: 433
Transit ASes present in the Internet Routing Table: 177
Transit-only ASes present in the Internet Routing Table: 57
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.2
Max AS path length visible: 17
Max AS path prepend of ASN ( 30263) 9
Prefixes from unregistered ASNs in the Routing Table: 2
Number of instances of unregistered ASNs: 2
Number of 32-bit ASNs allocated by the RIRs: 42918
Number of 32-bit ASNs visible in the Routing Table: 258
Prefixes from 32-bit ASNs in the Routing Table: 3558
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: 11
Number of addresses announced to Internet: 198582784
Equivalent to 11 /8s, 214 /16s and 34 /24s
Percentage of available address space announced: 5.4
Percentage of allocated address space announced: 5.4
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: 2109
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4224
Total APNIC prefixes after maximum aggregation: 2116
APNIC Deaggregation factor: 2.00
Prefixes being announced from the APNIC address blocks: 4372
Unique aggregates announced from the APNIC address blocks: 2558
APNIC Region origin ASes present in the Internet Routing Table: 470
APNIC Prefixes per ASN: 9.30
APNIC Region origin ASes announcing only one prefix: 194
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 149
Number of APNIC addresses announced to Internet: 46899456
Equivalent to 2 /8s, 203 /16s and 161 /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: 13507
Total ARIN prefixes after maximum aggregation: 6046
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 13045
Unique aggregates announced from the ARIN address blocks: 7186
ARIN Region origin ASes present in the Internet Routing Table: 547
ARIN Prefixes per ASN: 23.85
ARIN Region origin ASes announcing only one prefix: 203
ARIN Region transit ASes present in the Internet Routing Table: 73
Average ARIN Region AS path length visible: 2.8
Max ARIN Region AS path length visible: 13
Number of ARIN region 32-bit ASNs visible in the Routing Table: 86
Number of ARIN addresses announced to Internet: 139288064
Equivalent to 8 /8s, 77 /16s and 94 /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: 172
Total RIPE prefixes after maximum aggregation: 125
RIPE Deaggregation factor: 1.38
Prefixes being announced from the RIPE address blocks: 470
Unique aggregates announced from the RIPE address blocks: 452
RIPE Region origin ASes present in the Internet Routing Table: 22
RIPE Prefixes per ASN: 21.36
RIPE Region origin ASes announcing only one prefix: 8
RIPE Region transit ASes present in the Internet Routing Table: 4
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 10
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3
Number of RIPE addresses announced to Internet: 10281728
Equivalent to 0 /8s, 156 /16s and 227 /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: 358
Total LACNIC prefixes after maximum aggregation: 176
LACNIC Deaggregation factor: 2.03
Prefixes being announced from the LACNIC address blocks: 362
Unique aggregates announced from the LACNIC address blocks: 275
LACNIC Region origin ASes present in the Internet Routing Table: 56
LACNIC Prefixes per ASN: 6.46
LACNIC Region origin ASes announcing only one prefix: 25
LACNIC Region transit ASes present in the Internet Routing Table: 20
Average LACNIC Region AS path length visible: 7.2
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 17
Number of LACNIC addresses announced to Internet: 1635840
Equivalent to 0 /8s, 24 /16s and 246 /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: 280
Total AfriNIC prefixes after maximum aggregation: 57
AfriNIC Deaggregation factor: 4.91
Prefixes being announced from the AfriNIC address blocks: 283
Unique aggregates announced from the AfriNIC address blocks: 76
AfriNIC Region origin ASes present in the Internet Routing Table: 9
AfriNIC Prefixes per ASN: 31.44
AfriNIC Region origin ASes announcing only one prefix: 3
AfriNIC Region transit ASes present in the Internet Routing Table: 3
Average AfriNIC Region AS path length visible: 7.9
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 408064
Equivalent to 0 /8s, 6 /16s and 58 /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
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
58647 177 18 2 KAGAWAU-AS Kagawa University, JP
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
4621 70 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 63 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
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 4479 4627 2039 AMAZON-02, US
396982 2705 3598 397 GOOGLE-CLOUD-PLATFORM, US
15169 830 2001 62 GOOGLE, US
14618 820 4021 617 AMAZON-AES, US
8075 387 12791 327 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 368 507 93 CSUNET-NW, US
668 203 636 172 DNIC-AS-00668, US
376 202 178 151 RISQ-AS, CA
36492 157 11 35 GOOGLEWIFI, US
18558 141 18 4 NETBLK-RCOEK, 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
8987 58 199 42 AMAZON EXPANSION, IE
41264 36 2 33 GOOGLE-IT-RO-ISP, CH
513 20 87 19 CERN, CH
8895 13 24 2 ISU Internet Services Unit ISU, SA
47862 12 1 4 ANKABUT, AE
50999 5 8 1 KAUST-AS1, SA
21449 4 33 4 ETATGE, CH
43515 4 5 4 YOUTUBE YOUTUBE, IE
8674 2 0 1 NETNOD-IX Netnod AB, SE
12654 2 0 2 RIPE-NCC-RIS-AS Reseaux IP Europeens Ne
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
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
3596 34 4 3 Universidad Autonoma Metropolitana, MX
278 18 32 4 Universidad Nacional Autonoma de Mexico
21612 14 16 1 FUNDACAO INSTITUTO OSWALDO CRUZ, BR
19611 12 1 1 Associacao Antonio Vieira - Unisinos, B
61468 11 1 7 CEDIA, EC
11340 8 1 8 Red Universitaria Nacional, CL
1916 6 4 6 Rede Nacional de Ensino e Pesquisa, BR
28222 6 16 1 INSTITUTO NACIONAL DE PESQUISAS ESPACIA
52992 6 5 6 UNIVERSIDADE FEDERAL DE SAO PAULO, BR
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
327687 163 28 3 RENU, UG
36914 75 5 29 KENET-AS, KE
2018 19 2 19 TENET-1, ZA
327700 11 16 1 MoRENet, MZ
37215 7 8 1 MAREN, MW
8094 2 8 1 PUKNET, ZA
6149 1 0 1 TENET-2, ZA
36944 1 1 1 UBUNTU-UNICAST-AS, MW
328225 1 0 1 Strathmore-University, KE
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 4479 4627 2039 AMAZON-02, US
396982 2705 3598 397 GOOGLE-CLOUD-PLATFORM, US
15169 830 2001 62 GOOGLE, US
14618 820 4021 617 AMAZON-AES, US
2907 593 2162 465 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
8075 387 12791 327 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 368 507 93 CSUNET-NW, US
668 203 636 172 DNIC-AS-00668, US
376 202 178 151 RISQ-AS, CA
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 2705 2308 GOOGLE-CLOUD-PLATFORM, US
15169 830 768 GOOGLE, US
7497 437 414 CSTNET-AS-AP Computer Network Information Cente
2152 368 275 CSUNET-NW, US
14618 820 203 AMAZON-AES, US
58647 177 175 KAGAWAU-AS Kagawa University, JP
327687 163 160 RENU, UG
18558 141 137 NETBLK-RCOEK, US
2907 593 128 SINET-AS Research Organization of Information a
36492 157 122 GOOGLEWIFI, US
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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, 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
134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW
134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo
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
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 /10:3 /11:11 /12:30
/13:41 /14:97 /15:143 /16:984 /17:296 /18:258
/19:410 /20:2350 /21:784 /22:1188 /23:1263 /24:10684
/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 729 4479 AMAZON-02, US
15169 275 830 GOOGLE, US
14618 262 820 AMAZON-AES, US
396982 198 2705 GOOGLE-CLOUD-PLATFORM, US
8075 80 387 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 73 75 KENET-AS, KE
23024 52 113 OCDE, US
2152 37 368 CSUNET-NW, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
36492 28 157 GOOGLEWIFI, 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 3:136 5:7 6:4 8:26
12:1 13:179 14:5 15:131 16:112 18:264
23:118 24:2 31:2 34:21 35:52 38:2
40:5 41:72 42:10 43:1 44:4 45:42
46:11 47:1 49:6 50:8 52:873 54:267
58:2 59:19 60:5 61:3 62:7 63:41
64:139 65:41 66:65 67:25 68:13 69:38
70:42 71:45 72:13 74:103 76:8 77:2
80:1 84:3 85:5 87:1 88:1 89:8
91:14 92:5 94:4 96:6 97:2 98:12
99:78 101:3 102:25 103:240 104:224 107:43
108:155 109:8 111:17 113:4 114:31 115:1
116:10 117:61 118:32 119:18 121:27 122:11
123:8 124:40 125:3 128:25 129:11 130:81
131:40 132:19 133:152 134:106 135:4 136:103
137:119 138:14 139:15 140:12 141:7 142:284
143:21 144:46 145:3 146:11 147:23 148:198
149:5 150:31 151:13 152:14 153:1 154:4
155:26 156:66 157:25 158:12 159:141 160:30
161:34 162:89 163:59 164:18 165:47 166:1
167:21 168:64 169:8 170:114 172:114 173:122
174:2 175:18 176:14 177:2 178:2 179:3
180:1 182:1 184:2 185:83 186:3 188:7
189:3 190:2 191:1 192:694 193:29 194:14
195:13 196:58 197:13 198:386 199:253 200:29
201:5 202:600 203:432 204:293 205:151 206:167
207:239 208:86 209:188 210:189 211:13 212:18
213:12 214:8 216:159 217:3 218:22 219:5
220:14 222:2 223:14
End of report
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