[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 Jan 3 22:40:50 UTC 2025
IPv4 R&E Routing Table Report 22:40 GMT Fri 03 Jan, 2025
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: 32080
Prefixes after maximum aggregation (per Origin AS): 15530
Deaggregation factor: 2.07
Unique aggregates announced (without unneeded subnets): 18546
Total ASes present in the Internet Routing Table: 2851
Prefixes per ASN: 11.25
Origin-only ASes present in the Internet Routing Table: 2464
Origin ASes announcing only one prefix: 1093
Transit ASes present in the Internet Routing Table: 387
Transit-only ASes present in the Internet Routing Table: 64
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: 46007
Number of 32-bit ASNs visible in the Routing Table: 693
Prefixes from 32-bit ASNs in the Routing Table: 4892
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: 345762304
Equivalent to 20 /8s, 155 /16s and 234 /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: 4259
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4713
Total APNIC prefixes after maximum aggregation: 2274
APNIC Deaggregation factor: 2.07
Prefixes being announced from the APNIC address blocks: 4925
Unique aggregates announced from the APNIC address blocks: 2847
APNIC Region origin ASes present in the Internet Routing Table: 565
APNIC Prefixes per ASN: 8.72
APNIC Region origin ASes announcing only one prefix: 242
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.4
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: 47321088
Equivalent to 2 /8s, 210 /16s and 16 /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: 21182
Total ARIN prefixes after maximum aggregation: 9602
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 20394
Unique aggregates announced from the ARIN address blocks: 11162
ARIN Region origin ASes present in the Internet Routing Table: 1342
ARIN Prefixes per ASN: 15.20
ARIN Region origin ASes announcing only one prefix: 466
ARIN Region transit ASes present in the Internet Routing Table: 166
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: 228
Number of ARIN addresses announced to Internet: 209152256
Equivalent to 12 /8s, 119 /16s and 105 /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: 3669
Total RIPE prefixes after maximum aggregation: 2941
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 4228
Unique aggregates announced from the RIPE address blocks: 3589
RIPE Region origin ASes present in the Internet Routing Table: 672
RIPE Prefixes per ASN: 6.29
RIPE Region origin ASes announcing only one prefix: 300
RIPE Region transit ASes present in the Internet Routing Table: 112
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: 159
Number of RIPE addresses announced to Internet: 82075392
Equivalent to 4 /8s, 228 /16s and 95 /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: 1387
Total LACNIC prefixes after maximum aggregation: 536
LACNIC Deaggregation factor: 2.59
Prefixes being announced from the LACNIC address blocks: 1391
Unique aggregates announced from the LACNIC address blocks: 712
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 8.92
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: 5.1
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 4660480
Equivalent to 0 /8s, 71 /16s and 29 /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: 1125
Total AfriNIC prefixes after maximum aggregation: 173
AfriNIC Deaggregation factor: 6.50
Prefixes being announced from the AfriNIC address blocks: 1132
Unique aggregates announced from the AfriNIC address blocks: 226
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 22.64
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.3
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: 2548480
Equivalent to 0 /8s, 38 /16s and 227 /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 624 2202 464 SINET-AS Research Organization of Informa
7497 449 180 24 CSTNET-AS-AP Computer Network Information
1237 191 74 145 KREONET-AS-KR KISTI, KR
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 313 116 AARNET-AS-AP Australian Academic and Rese
55824 145 19 20 NKN-CORE-NW NKN Core Network, IN
4538 139 4192 71 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
2697 59 4 34 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 5125 4884 2404 AMAZON-02, US
396982 2891 3656 437 GOOGLE-CLOUD-PLATFORM, US
714 1157 4392 5 APPLE-ENGINEERING, US
14618 1000 4444 758 AMAZON-AES, US
15169 930 2011 70 GOOGLE, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 526 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 205 646 174 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
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
786 185 1767 182 JANET Jisc Services Limited, GB
8895 130 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
8987 83 227 60 AMAZON EXPANSION, IE
137 82 677 77 ASGARR Consortium GARR, IT
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 52 5 17 CEDIA, EC
2715 48 99 36 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 530 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
327700 12 16 1 MoRENet, MZ
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
37074 6 8 2 UG-AS, GH
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 5125 4884 2404 AMAZON-02, US
396982 2891 3656 437 GOOGLE-CLOUD-PLATFORM, US
714 1157 4392 5 APPLE-ENGINEERING, US
14618 1000 4444 758 AMAZON-AES, US
15169 930 2011 70 GOOGLE, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 624 2202 464 SINET-AS Research Organization of Informa
36914 530 82 3 KENET-AS, KE
2152 526 507 99 CENIC-2152, US
7497 449 180 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 2891 2454 GOOGLE-CLOUD-PLATFORM, US
714 1157 1152 APPLE-ENGINEERING, US
15169 930 860 GOOGLE, US
36914 530 527 KENET-AS, KE
2152 526 427 CENIC-2152, US
7497 449 425 CSTNET-AS-AP Computer Network Information Cente
2018 379 308 TENET-1, ZA
14618 1000 242 AMAZON-AES, US
5786 198 197 UPRENET, PR
58647 182 180 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
192.225.212.0/24 Origin: 14618 AMAZON-AES, US
192.225.212.0/24 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 /16:2422 /17:631 /18:600
/19:870 /20:3041 /21:1580 /22:2290 /23:2470 /24:17716
/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 859 5125 AMAZON-02, US
36914 506 530 KENET-AS, KE
14618 315 1000 AMAZON-AES, US
15169 268 930 GOOGLE, US
396982 262 2891 GOOGLE-CLOUD-PLATFORM, US
8075 128 711 MICROSOFT-CORP-MSN-AS-BLOCK, US
8895 125 130 ISU Internet Services Unit ISU, SA
2152 62 526 CENIC-2152, US
23024 37 97 OCDE, US
3267 34 78 NIKS, RU
Complete listing at https://bgp.nsrc.org/REN/PacWave/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 2:1 3:268 4:2 5:24 6:4
8:28 12:2 13:177 14:92 15:135 16:126
17:307 18:323 23:125 24:3 31:6 34:21
35:84 36:1 37:8 38:11 40:5 41:218
42:11 43:2 44:4 45:92 46:14 47:1
49:10 50:13 52:860 54:187 57:10 58:1
59:19 60:6 61:3 62:16 63:46 64:184
65:48 66:119 67:76 68:27 69:69 70:38
71:37 72:20 74:160 75:1 76:45 77:12
78:3 79:10 80:13 81:26 82:7 83:7
84:9 85:51 86:6 87:5 88:1 89:23
91:60 92:9 93:45 94:7 95:3 96:6
97:1 98:15 99:79 101:2 102:16 103:361
104:253 107:42 108:169 109:8 111:22 113:5
114:32 115:1 116:14 117:66 118:33 119:23
121:28 122:11 123:8 124:42 125:5 128:57
129:41 130:169 131:81 132:66 133:155 134:111
135:7 136:312 137:121 138:72 139:22 140:47
141:15 142:338 143:40 144:73 145:8 146:140
147:82 148:206 149:21 150:78 151:51 152:146
153:14 154:41 155:109 156:136 157:40 158:41
159:161 160:39 161:54 162:113 163:76 164:29
165:80 166:7 167:40 168:185 169:15 170:206
171:1 172:126 173:126 174:2 175:16 176:6
177:6 178:3 179:14 180:16 181:1 182:11
184:9 185:152 186:3 187:22 188:20 189:3
190:34 191:13 192:1700 193:302 194:133 195:87
196:145 197:319 198:636 199:404 200:268 201:37
202:665 203:463 204:458 205:216 206:252 207:357
208:169 209:269 210:220 211:3 212:177 213:24
214:8 216:264 217:17 218:23 219:6 220:16
222:2 223:15
End of report
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