Global R&E Routing Table Report 22:10 GMT Sat 21 Aug, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 21647 Prefixes after maximum aggregation (per Origin AS): 11475 Deaggregation factor: 1.89 Unique aggregates announced (without unneeded subnets): 13470 Total ASes present in the Internet Routing Table: 2721 Prefixes per ASN: 7.96 Origin-only ASes present in the Internet Routing Table: 2332 Origin ASes announcing only one prefix: 1073 Transit ASes present in the Internet Routing Table: 389 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 24 Number of instances of unregistered ASNs: 24 Number of 32-bit ASNs allocated by the RIRs: 36968 Number of 32-bit ASNs visible in the Routing Table: 598 Prefixes from 32-bit ASNs in the Routing Table: 2059 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 6 Number of addresses announced to Internet: 239711717 Equivalent to 14 /8s, 73 /16s and 181 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 2991 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4769 Total APNIC prefixes after maximum aggregation: 2327 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4788 Unique aggregates announced from the APNIC address blocks: 2676 APNIC Region origin ASes present in the Internet Routing Table: 567 APNIC Prefixes per ASN: 8.44 APNIC Region origin ASes announcing only one prefix: 237 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 6.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 214 Number of APNIC addresses announced to Internet: 46139712 Equivalent to 2 /8s, 192 /16s and 9 /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, 131072-147769 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: 11269 Total ARIN prefixes after maximum aggregation: 5577 ARIN Deaggregation factor: 2.02 Prefixes being announced from the ARIN address blocks: 11206 Unique aggregates announced from the ARIN address blocks: 6841 ARIN Region origin ASes present in the Internet Routing Table: 1200 ARIN Prefixes per ASN: 9.34 ARIN Region origin ASes announcing only one prefix: 429 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 162 Number of ARIN addresses announced to Internet: 128793137 Equivalent to 7 /8s, 173 /16s and 58 /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: 3199 Total RIPE prefixes after maximum aggregation: 2725 RIPE Deaggregation factor: 1.17 Prefixes being announced from the RIPE address blocks: 3254 Unique aggregates announced from the RIPE address blocks: 2831 RIPE Region origin ASes present in the Internet Routing Table: 656 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 318 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 126 Number of RIPE addresses announced to Internet: 57903744 Equivalent to 3 /8s, 115 /16s and 138 /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 196608-213403 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: 1552 Total LACNIC prefixes after maximum aggregation: 669 LACNIC Deaggregation factor: 2.32 Prefixes being announced from the LACNIC address blocks: 1559 Unique aggregates announced from the LACNIC address blocks: 888 LACNIC Region origin ASes present in the Internet Routing Table: 172 LACNIC Prefixes per ASN: 9.06 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 71 Number of LACNIC addresses announced to Internet: 4204020 Equivalent to 0 /8s, 64 /16s and 37 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 834 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 834 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 17.02 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2669568 Equivalent to 0 /8s, 40 /16s and 188 /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 629 2155 456 SINET-AS Research Organization of Infor 7497 435 214 25 CSTNET-AS-AP Computer Network Informati 58647 198 18 2 KAGAWAU-AS Kagawa University, JP 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 179 330 125 AARNET-AS-AP Australian Academic and Re 4538 125 4192 72 ERX-CERNET-BKB China Education and Rese 55824 114 18 11 NKN-CORE-NW NKN Core Network, IN 4621 81 37 10 UNINET-AS-AP UNINET-, TH 4762 65 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1722 1545 486 AMAZON-02, US 15169 745 3278 66 GOOGLE, US 14618 510 3967 380 AMAZON-AES, US 396982 288 186 160 GOOGLE-PRIVATE-CLOUD, US 7896 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 2152 156 507 85 CSUNET-NW, US 36492 154 10 47 GOOGLEWIFI, US 18558 137 18 4 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 559 116 550 107 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 54 151 50 SUNET SUNET Swedish University Network, Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 204 207 42 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 106 25 52 Red Universitaria Nacional, CL 27947 100 0 81 Telconet S.A, EC 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 337 319 74 TENET-1, ZA 327687 134 28 3 RENU, UG 36914 97 82 3 KENET-AS, KE 8094 55 48 4 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 12 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1722 1545 486 AMAZON-02, US 15169 745 3278 66 GOOGLE, US 2907 629 2155 456 SINET-AS Research Organization of Infor 14618 510 3967 380 AMAZON-AES, US 7497 435 214 25 CSTNET-AS-AP Computer Network Informati 2018 337 319 74 TENET-1, ZA 396982 288 186 160 GOOGLE-PRIVATE-CLOUD, US 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 15169 745 679 GOOGLE, US 7497 435 410 CSTNET-AS-AP Computer Network Information Cente 2018 337 263 TENET-1, ZA 7896 241 234 NU-AS, US 5786 201 200 UPRENET, PR 58647 198 196 KAGAWAU-AS Kagawa University, JP 2907 629 173 SINET-AS Research Organization of Information a 1916 204 162 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 134 131 RENU, UG Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US 14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.107.242.0/24 Origin: 394784 UNASSIGNED Transit: 40831 PHS, US 198.135.168.0/24 Origin: 14618 AMAZON-AES, US Transit: 16509 AMAZON-02, US 205.166.145.0/24 Origin: 394784 UNASSIGNED Transit: 40831 PHS, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /10:2 /11:3 /12:17 /13:33 /14:78 /15:154 /16:2091 /17:403 /18:439 /19:710 /20:1027 /21:949 /22:1476 /23:1605 /24:12315 /25:53 /26:64 /27:50 /28:35 /29:90 /30:32 /31:14 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 520 1722 AMAZON-02, US 15169 275 745 GOOGLE, US 14618 167 510 AMAZON-AES, US 27947 93 100 Telconet S.A, EC 36914 84 97 KENET-AS, KE 23024 53 56 OCDE, US 396982 47 288 GOOGLE-PRIVATE-CLOUD, US 36492 43 154 GOOGLEWIFI, US 58647 34 198 KAGAWAU-AS Kagawa University, JP 327700 33 39 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:54 5:17 8:4 12:1 13:152 14:84 15:13 18:41 23:53 24:6 31:6 35:6 37:6 38:9 40:1 41:145 42:25 44:5 45:64 46:9 47:1 49:10 50:1 52:462 54:130 58:1 59:20 60:4 61:3 62:6 63:36 64:131 65:6 66:58 67:55 68:10 69:36 70:16 71:3 72:14 74:100 75:128 76:164 77:8 78:3 79:10 80:14 81:29 82:5 83:7 84:6 85:38 86:9 87:1 88:1 89:14 91:46 92:2 93:19 94:4 95:5 96:6 97:1 98:7 99:164 101:2 102:9 103:300 104:92 106:1 107:2 108:53 109:9 110:3 111:20 112:4 114:23 116:5 117:61 118:32 119:19 121:26 122:8 123:8 124:42 125:13 128:81 129:176 130:115 131:95 132:60 133:137 134:97 135:10 136:256 137:151 138:10 139:17 140:36 141:3 142:172 143:49 144:68 146:136 147:66 148:164 149:18 150:38 151:7 152:78 153:11 154:24 155:52 156:66 157:26 158:46 159:120 160:25 161:21 162:37 163:63 164:30 165:56 166:1 167:20 168:156 169:10 170:70 171:1 172:107 173:87 174:1 175:31 176:12 177:10 178:3 179:11 180:21 181:11 182:6 184:7 185:56 186:3 187:18 188:19 189:6 190:35 191:36 192:1427 193:203 194:120 195:60 196:174 197:5 198:486 199:269 200:241 201:36 202:630 203:429 204:374 205:196 206:207 207:183 208:82 209:148 210:184 211:14 212:41 213:12 216:128 217:23 218:26 219:8 220:16 222:4 223:2 End of report