[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 Dec 26 22:40:48 UTC 2024
IPv4 R&E Routing Table Report 22:40 GMT Thu 26 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: 32028
Prefixes after maximum aggregation (per Origin AS): 15498
Deaggregation factor: 2.07
Unique aggregates announced (without unneeded subnets): 18526
Total ASes present in the Internet Routing Table: 2842
Prefixes per ASN: 11.27
Origin-only ASes present in the Internet Routing Table: 2461
Origin ASes announcing only one prefix: 1092
Transit ASes present in the Internet Routing Table: 381
Transit-only ASes present in the Internet Routing Table: 59
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: 45999
Number of 32-bit ASNs visible in the Routing Table: 693
Prefixes from 32-bit ASNs in the Routing Table: 4896
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: 345629952
Equivalent to 20 /8s, 153 /16s and 229 /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: 4247
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4714
Total APNIC prefixes after maximum aggregation: 2274
APNIC Deaggregation factor: 2.07
Prefixes being announced from the APNIC address blocks: 4926
Unique aggregates announced from the APNIC address blocks: 2851
APNIC Region origin ASes present in the Internet Routing Table: 566
APNIC Prefixes per ASN: 8.70
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: 4.6
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: 47320320
Equivalent to 2 /8s, 210 /16s and 13 /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: 21145
Total ARIN prefixes after maximum aggregation: 9576
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 20357
Unique aggregates announced from the ARIN address blocks: 11151
ARIN Region origin ASes present in the Internet Routing Table: 1336
ARIN Prefixes per ASN: 15.24
ARIN Region origin ASes announcing only one prefix: 464
ARIN Region transit ASes present in the Internet Routing Table: 164
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: 227
Number of ARIN addresses announced to Internet: 209027584
Equivalent to 12 /8s, 117 /16s and 130 /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: 3654
Total RIPE prefixes after maximum aggregation: 2935
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 4213
Unique aggregates announced from the RIPE address blocks: 3576
RIPE Region origin ASes present in the Internet Routing Table: 671
RIPE Prefixes per ASN: 6.28
RIPE Region origin ASes announcing only one prefix: 300
RIPE Region transit ASes present in the Internet Routing Table: 109
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: 82061824
Equivalent to 4 /8s, 228 /16s and 42 /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: 1373
Total LACNIC prefixes after maximum aggregation: 533
LACNIC Deaggregation factor: 2.58
Prefixes being announced from the LACNIC address blocks: 1377
Unique aggregates announced from the LACNIC address blocks: 709
LACNIC Region origin ASes present in the Internet Routing Table: 155
LACNIC Prefixes per ASN: 8.88
LACNIC Region origin ASes announcing only one prefix: 55
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: 65
Number of LACNIC addresses announced to Internet: 4656640
Equivalent to 0 /8s, 71 /16s and 14 /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: 1138
Total AfriNIC prefixes after maximum aggregation: 176
AfriNIC Deaggregation factor: 6.47
Prefixes being announced from the AfriNIC address blocks: 1145
Unique aggregates announced from the AfriNIC address blocks: 229
AfriNIC Region origin ASes present in the Internet Routing Table: 53
AfriNIC Prefixes per ASN: 21.60
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: 3.9
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 2558976
Equivalent to 0 /8s, 39 /16s and 12 /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 2201 461 SINET-AS Research Organization of Informa
7497 444 180 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 5128 4900 2401 AMAZON-02, US
396982 2891 3656 437 GOOGLE-CLOUD-PLATFORM, US
714 1156 4392 5 APPLE-ENGINEERING, US
14618 1005 4501 763 AMAZON-AES, US
15169 925 2011 70 GOOGLE, US
8075 709 16016 597 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 519 507 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 129 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 82 227 59 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 52 5 17 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 542 82 3 KENET-AS, KE
2018 378 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
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
37654 6 0 5 RwEdNet-AS, RW
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 5128 4900 2401 AMAZON-02, US
396982 2891 3656 437 GOOGLE-CLOUD-PLATFORM, US
714 1156 4392 5 APPLE-ENGINEERING, US
14618 1005 4501 763 AMAZON-AES, US
15169 925 2011 70 GOOGLE, US
8075 709 16016 597 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 624 2201 461 SINET-AS Research Organization of Informa
36914 542 82 3 KENET-AS, KE
2152 519 507 99 CENIC-2152, US
7497 444 180 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 1156 1151 APPLE-ENGINEERING, US
15169 925 855 GOOGLE, US
36914 542 539 KENET-AS, KE
2152 519 420 CENIC-2152, US
7497 444 420 CSTNET-AS-AP Computer Network Information Cente
2018 378 307 TENET-1, ZA
14618 1005 242 AMAZON-AES, US
5786 187 186 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 /17:628 /18:599
/19:866 /20:3038 /21:1578 /22:2280 /23:2466 /24:17691
/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 855 5128 AMAZON-02, US
36914 518 542 KENET-AS, KE
14618 315 1005 AMAZON-AES, US
15169 268 925 GOOGLE, US
396982 262 2891 GOOGLE-CLOUD-PLATFORM, US
8075 127 709 MICROSOFT-CORP-MSN-AS-BLOCK, US
8895 124 129 ISU Internet Services Unit ISU, SA
2152 62 519 CENIC-2152, US
23024 37 97 OCDE, US
32440 36 61 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 3:268 4:2 5:24 6:4
8:28 12:2 13:177 14:92 15:135 16:126
17:307 18:322 23:125 24:3 31:6 34:21
35:84 36:1 37:8 38:11 40:5 41:222
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 60:5 61:3 62:15 63:46 64:183
65:49 66:120 67:76 68:27 69:68 70:38
71:37 72:20 74:159 75:1 76:48 77:12
78:3 79:10 80:13 81:26 82:7 83:7
84:9 85:51 86:5 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
104:256 107:42 108:167 109:8 111:22 113:5
114:32 115:1 116:14 117:66 118:33 119:23
121:28 122:11 123:8 124:41 125:5 128:57
129:41 130:169 131:81 132:65 133:155 134:111
135:7 136:301 137:121 138:72 139:22 140:47
141:15 142:334 143:41 144:71 145:8 146:140
147:82 148:206 149:21 150:78 151:51 152:147
153:14 154:41 155:109 156:136 157:40 158:47
159:162 160:39 161:54 162:113 163:76 164:29
165:80 166:7 167:40 168:186 169:15 170:206
171:1 172:126 173:126 174:2 175:16 176:6
177:6 178:3 179:14 180:16 181:1 182:11
184:11 185:150 186:3 187:22 188:20 189:3
190:18 191:13 192:1694 193:302 194:133 195:85
196:145 197:329 198:634 199:405 200:267 201:37
202:666 203:463 204:460 205:217 206:252 207:357
208:169 209:269 210:218 211:3 212:175 213:24
214:8 216:261 217:17 218:23 219:6 220:16
222:2 223:15
End of report
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