Global R&E Routing Table Report 22:10 GMT Sat 17 Jul, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 21809 Prefixes after maximum aggregation (per Origin AS): 11499 Deaggregation factor: 1.90 Unique aggregates announced (without unneeded subnets): 13564 Total ASes present in the Internet Routing Table: 2734 Prefixes per ASN: 7.98 Origin-only ASes present in the Internet Routing Table: 2339 Origin ASes announcing only one prefix: 1080 Transit ASes present in the Internet Routing Table: 395 Transit-only ASes present in the Internet Routing Table: 69 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: 24 Number of instances of unregistered ASNs: 24 Number of 32-bit ASNs allocated by the RIRs: 36638 Number of 32-bit ASNs visible in the Routing Table: 593 Prefixes from 32-bit ASNs in the Routing Table: 1960 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: 239768735 Equivalent to 14 /8s, 74 /16s and 148 /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: 3242 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4772 Total APNIC prefixes after maximum aggregation: 2359 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4783 Unique aggregates announced from the APNIC address blocks: 2715 APNIC Region origin ASes present in the Internet Routing Table: 572 APNIC Prefixes per ASN: 8.36 APNIC Region origin ASes announcing only one prefix: 242 APNIC Region transit ASes present in the Internet Routing Table: 62 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: 214 Number of APNIC addresses announced to Internet: 46282048 Equivalent to 2 /8s, 194 /16s and 53 /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: 11058 Total ARIN prefixes after maximum aggregation: 5508 ARIN Deaggregation factor: 2.01 Prefixes being announced from the ARIN address blocks: 11003 Unique aggregates announced from the ARIN address blocks: 6792 ARIN Region origin ASes present in the Internet Routing Table: 1192 ARIN Prefixes per ASN: 9.23 ARIN Region origin ASes announcing only one prefix: 429 ARIN Region transit ASes present in the Internet Routing Table: 162 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: 154 Number of ARIN addresses announced to Internet: 128418833 Equivalent to 7 /8s, 167 /16s and 132 /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: 3418 Total RIPE prefixes after maximum aggregation: 2756 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3473 Unique aggregates announced from the RIPE address blocks: 2858 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.15 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 107 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: 131 Number of RIPE addresses announced to Internet: 58148992 Equivalent to 3 /8s, 119 /16s and 72 /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: 1649 Total LACNIC prefixes after maximum aggregation: 672 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1656 Unique aggregates announced from the LACNIC address blocks: 893 LACNIC Region origin ASes present in the Internet Routing Table: 172 LACNIC Prefixes per ASN: 9.63 LACNIC Region origin ASes announcing only one prefix: 64 LACNIC Region transit ASes present in the Internet Routing Table: 28 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: 70 Number of LACNIC addresses announced to Internet: 4230862 Equivalent to 0 /8s, 64 /16s and 142 /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: 888 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 4.77 Prefixes being announced from the AfriNIC address blocks: 888 Unique aggregates announced from the AfriNIC address blocks: 300 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 18.50 AfriNIC Region origin ASes announcing only one prefix: 22 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: 24 Number of AfriNIC addresses announced to Internet: 2686464 Equivalent to 0 /8s, 40 /16s and 254 /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 431 214 25 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 179 330 125 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 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 1632 1534 468 AMAZON-02, US 15169 741 3278 65 GOOGLE, US 14618 495 3967 367 AMAZON-AES, US 7896 245 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 396982 220 119 141 GOOGLE-PRIVATE-CLOUD, US 5786 200 16 1 UPRENET, PR 2152 155 507 87 CSUNET-NW, US 36492 141 9 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 786 187 1779 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 80 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 83 Telconet S.A, EC 27884 93 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 329 319 74 TENET-1, ZA 327687 135 28 3 RENU, UG 36914 98 82 3 KENET-AS, KE 2561 75 5 33 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 30 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 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 1632 1534 468 AMAZON-02, US 15169 741 3278 65 GOOGLE, US 2907 630 2155 456 SINET-AS Research Organization of Infor 14618 495 3967 367 AMAZON-AES, US 7497 431 214 25 CSTNET-AS-AP Computer Network Informati 2018 329 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 396982 220 119 141 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 741 676 GOOGLE, US 7497 431 406 CSTNET-AS-AP Computer Network Information Cente 2018 329 255 TENET-1, ZA 7896 245 238 NU-AS, US 5786 200 199 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 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: 20965 GEANT The GEANT IP Service, NL 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 /14:77 /15:154 /16:2096 /17:405 /18:435 /19:714 /20:978 /21:956 /22:1495 /23:1598 /24:12460 /25:88 /26:68 /27:54 /28:38 /29:89 /30:33 /31:9 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 518 1632 AMAZON-02, US 15169 275 741 GOOGLE, US 8895 168 173 ISU Internet Services Unit ISU, SA 14618 158 495 AMAZON-AES, US 27947 97 102 Telconet S.A, EC 27884 90 93 CABLECOLOR S.A., HN 36914 85 98 KENET-AS, KE 23024 53 56 OCDE, US 396982 43 220 GOOGLE-PRIVATE-CLOUD, US 36492 41 141 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 14:83 15:11 18:41 23:49 24:6 31:6 35:6 37:6 38:9 40:1 41:140 42:26 44:5 45:66 46:9 47:1 49:10 50:1 52:426 54:98 58:1 59:20 60:4 61:4 62:7 63:35 64:130 65:6 66:55 67:56 68:10 69:31 70:16 71:3 72:14 74:99 75:128 76:165 77:8 78:4 79:10 80:14 81:32 82:5 83:7 84:5 85:37 86:9 87:1 88:1 89:15 91:51 92:2 93:12 94:4 95:5 96:6 97:1 98:7 99:164 101:2 102:9 103:298 104:84 106:1 107:2 108:52 109:9 110:3 111:20 112:4 114:23 115:1 116:4 117:61 118:35 119:19 121:29 122:8 123:8 124:41 125:13 128:81 129:176 130:111 131:96 132:60 133:137 134:92 135:10 136:252 137:159 138:10 139:16 140:35 141:3 142:168 143:49 144:69 146:136 147:72 148:164 149:18 150:38 151:7 152:78 153:11 154:24 155:52 156:64 157:26 158:45 159:118 160:25 161:21 162:34 163:63 164:47 165:18 166:1 167:19 168:154 169:9 170:69 171:1 172:106 173:87 174:1 175:32 176:11 177:8 178:3 179:11 180:21 181:12 182:6 184:6 185:57 186:3 187:18 188:19 189:6 190:125 191:36 192:1419 193:249 194:124 195:88 196:169 197:4 198:481 199:265 200:241 201:36 202:629 203:429 204:365 205:197 206:208 207:183 208:80 209:148 210:188 211:14 212:170 213:12 216:124 217:22 218:26 219:8 220:24 222:4 223:2 End of report