Global R&E Routing Table Report 22:10 GMT Mon 28 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 21813 Prefixes after maximum aggregation (per Origin AS): 11504 Deaggregation factor: 1.90 Unique aggregates announced (without unneeded subnets): 13560 Total ASes present in the Internet Routing Table: 2745 Prefixes per ASN: 7.95 Origin-only ASes present in the Internet Routing Table: 2340 Origin ASes announcing only one prefix: 1078 Transit ASes present in the Internet Routing Table: 405 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 17 Number of instances of unregistered ASNs: 17 Number of 32-bit ASNs allocated by the RIRs: 36451 Number of 32-bit ASNs visible in the Routing Table: 595 Prefixes from 32-bit ASNs in the Routing Table: 1949 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: 4 Number of addresses announced to Internet: 240078085 Equivalent to 14 /8s, 79 /16s and 77 /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: 3243 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4801 Total APNIC prefixes after maximum aggregation: 2379 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4810 Unique aggregates announced from the APNIC address blocks: 2721 APNIC Region origin ASes present in the Internet Routing Table: 573 APNIC Prefixes per ASN: 8.39 APNIC Region origin ASes announcing only one prefix: 241 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46331968 Equivalent to 2 /8s, 194 /16s and 248 /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: 11026 Total ARIN prefixes after maximum aggregation: 5484 ARIN Deaggregation factor: 2.01 Prefixes being announced from the ARIN address blocks: 10983 Unique aggregates announced from the ARIN address blocks: 6784 ARIN Region origin ASes present in the Internet Routing Table: 1191 ARIN Prefixes per ASN: 9.22 ARIN Region origin ASes announcing only one prefix: 424 ARIN Region transit ASes present in the Internet Routing Table: 164 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: 153 Number of ARIN addresses announced to Internet: 128569905 Equivalent to 7 /8s, 169 /16s and 210 /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: 3422 Total RIPE prefixes after maximum aggregation: 2759 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3462 Unique aggregates announced from the RIPE address blocks: 2849 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.13 RIPE Region origin ASes announcing only one prefix: 322 RIPE Region transit ASes present in the Internet Routing Table: 109 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: 129 Number of RIPE addresses announced to Internet: 58247808 Equivalent to 3 /8s, 120 /16s and 202 /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: 1661 Total LACNIC prefixes after maximum aggregation: 676 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1667 Unique aggregates announced from the LACNIC address blocks: 899 LACNIC Region origin ASes present in the Internet Routing Table: 176 LACNIC Prefixes per ASN: 9.47 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 30 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 74 Number of LACNIC addresses announced to Internet: 4235284 Equivalent to 0 /8s, 64 /16s and 160 /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: 886 Total AfriNIC prefixes after maximum aggregation: 190 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 887 Unique aggregates announced from the AfriNIC address blocks: 303 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 17.39 AfriNIC Region origin ASes announcing only one prefix: 25 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: 27 Number of AfriNIC addresses announced to Internet: 2688256 Equivalent to 0 /8s, 41 /16s and 5 /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 630 2155 456 SINET-AS Research Organization of Infor 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 58647 198 18 2 KAGAWAU-AS Kagawa University, JP 1237 192 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 127 AARNET-AS-AP Australian Academic and Re 55824 129 19 23 NKN-CORE-NW NKN Core Network, IN 4538 125 4192 72 ERX-CERNET-BKB China Education and Rese 4621 82 37 11 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 1620 1530 456 AMAZON-02, US 15169 737 3278 65 GOOGLE, US 14618 491 3966 363 AMAZON-AES, US 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 396982 212 110 133 GOOGLE-PRIVATE-CLOUD, US 5786 201 16 1 UPRENET, PR 2152 155 507 87 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 36492 130 9 43 GOOGLEWIFI, 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 786 187 1787 185 JANET Jisc Services Limited, GB 8895 173 24 4 ISU Internet Services Unit ISU, SA 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 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol 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 202 207 41 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 102 0 84 Telconet S.A, EC 27884 96 6 2 CABLECOLOR S.A., HN 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 28614 38 2 2 Fundacao Universidade Regional de Blume 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 324 319 74 TENET-1, ZA 327687 134 28 3 RENU, UG 36914 99 82 3 KENET-AS, KE 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37182 11 8 1 TERNET, TZ 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 1620 1530 456 AMAZON-02, US 15169 737 3278 65 GOOGLE, US 2907 630 2155 456 SINET-AS Research Organization of Infor 14618 491 3966 363 AMAZON-AES, US 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 2018 324 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 396982 212 110 133 GOOGLE-PRIVATE-CLOUD, US 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 737 672 GOOGLE, US 7497 433 404 CSTNET-AS-AP Computer Network Information Cente 2018 324 250 TENET-1, ZA 7896 245 238 NU-AS, US 5786 201 200 UPRENET, PR 58647 198 196 KAGAWAU-AS Kagawa University, JP 2907 630 174 SINET-AS Research Organization of Information a 8895 173 169 ISU Internet Services Unit ISU, SA 1916 202 161 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 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 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, 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 164.160.240.0/20 Origin: 328439 UNASSIGNED Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK, 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 216.169.147.0/24 Origin: 14618 AMAZON-AES, US Transit: 16509 AMAZON-02, 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 /14:77 /15:154 /16:2101 /17:403 /18:437 /19:715 /20:979 /21:957 /22:1496 /23:1591 /24:12465 /25:88 /26:69 /27:56 /28:37 /29:86 /30:32 /31:8 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 516 1620 AMAZON-02, US 15169 275 737 GOOGLE, US 8895 168 173 ISU Internet Services Unit ISU, SA 14618 158 491 AMAZON-AES, US 27947 97 102 Telconet S.A, EC 27884 93 96 CABLECOLOR S.A., HN 36914 86 99 KENET-AS, KE 23024 53 56 OCDE, US 396982 41 212 GOOGLE-PRIVATE-CLOUD, US 36492 37 130 GOOGLEWIFI, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:54 5:16 8:4 12:1 13:155 14:84 15:7 18:41 23:49 24:6 31:6 35:6 37:6 38:9 40:1 41:142 42:26 44:5 45:63 46:9 47:1 49:10 50:1 52:426 54:98 58:1 59:20 60:4 61:4 62:7 63:35 64:129 65:5 66:56 67:56 68:10 69:31 70:16 71:3 72:14 74:97 75:128 76:166 77:9 78:4 79:10 80:14 81:32 82:5 83:7 84:5 85:37 86:9 87:1 88:1 89:15 91:52 92:2 93:12 94:4 95:4 96:6 97:1 98:7 99:164 101:2 102:10 103:299 104:85 106:1 107:2 108:52 109:9 110:3 111:20 112:4 114:23 115:1 116:6 117:63 118:35 119:18 121:29 122:8 123:8 124:40 125:13 128:86 129:176 130:111 131:96 132:60 133:137 134:91 135:6 136:250 137:157 138:14 139:16 140:36 141:3 142:164 143:49 144:68 146:136 147:71 148:164 149:18 150:38 151:5 152:77 153:11 154:25 155:50 156:64 157:26 158:45 159:118 160:26 161:21 162:31 163:63 164:47 165:17 166:1 167:19 168:154 169:9 170:69 171:1 172:106 173:87 174:1 175:32 176:11 177:8 178:3 179:12 180:21 181:12 182:6 184:11 185:56 186:3 187:18 188:19 189:6 190:128 191:36 192:1424 193:247 194:125 195:88 196:168 197:4 198:484 199:269 200:241 201:36 202:636 203:428 204:365 205:194 206:207 207:183 208:80 209:148 210:188 211:14 212:170 213:12 216:125 217:18 218:26 219:8 220:24 222:4 223:2 End of report