Global R&E Routing Table Report 22:00 GMT Sat 13 Nov, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22198 Prefixes after maximum aggregation (per Origin AS): 12115 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 14395 Total ASes present in the Internet Routing Table: 2768 Prefixes per ASN: 8.02 Origin-only ASes present in the Internet Routing Table: 2390 Origin ASes announcing only one prefix: 1098 Transit ASes present in the Internet Routing Table: 378 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 3.4 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 37815 Number of 32-bit ASNs visible in the Routing Table: 621 Prefixes from 32-bit ASNs in the Routing Table: 1813 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: 7 Number of addresses announced to Internet: 242927960 Equivalent to 14 /8s, 122 /16s and 201 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 2992 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4731 Total APNIC prefixes after maximum aggregation: 2335 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4776 Unique aggregates announced from the APNIC address blocks: 2701 APNIC Region origin ASes present in the Internet Routing Table: 585 APNIC Prefixes per ASN: 8.16 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 45906240 Equivalent to 2 /8s, 188 /16s and 121 /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, 131072-151865 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: 11575 Total ARIN prefixes after maximum aggregation: 6205 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 11486 Unique aggregates announced from the ARIN address blocks: 7672 ARIN Region origin ASes present in the Internet Routing Table: 1222 ARIN Prefixes per ASN: 9.40 ARIN Region origin ASes announcing only one prefix: 432 ARIN Region transit ASes present in the Internet Routing Table: 160 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 13 Number of ARIN region 32-bit ASNs visible in the Routing Table: 156 Number of ARIN addresses announced to Internet: 131994168 Equivalent to 7 /8s, 222 /16s and 18 /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: 3432 Total RIPE prefixes after maximum aggregation: 2756 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3477 Unique aggregates announced from the RIPE address blocks: 2851 RIPE Region origin ASes present in the Internet Routing Table: 673 RIPE Prefixes per ASN: 5.17 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 104 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 133 Number of RIPE addresses announced to Internet: 58172864 Equivalent to 3 /8s, 119 /16s and 165 /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: 1536 Total LACNIC prefixes after maximum aggregation: 624 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1543 Unique aggregates announced from the LACNIC address blocks: 870 LACNIC Region origin ASes present in the Internet Routing Table: 183 LACNIC Prefixes per ASN: 8.43 LACNIC Region origin ASes announcing only one prefix: 71 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 81 Number of LACNIC addresses announced to Internet: 4104736 Equivalent to 0 /8s, 62 /16s and 162 /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: 909 Total AfriNIC prefixes after maximum aggregation: 188 AfriNIC Deaggregation factor: 4.84 Prefixes being announced from the AfriNIC address blocks: 909 Unique aggregates announced from the AfriNIC address blocks: 294 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 17.82 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: 3.1 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2748160 Equivalent to 0 /8s, 41 /16s and 239 /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 618 2125 456 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 176 329 122 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 127 4192 72 ERX-CERNET-BKB China Education and Rese 55824 127 19 22 NKN-CORE-NW NKN Core Network, IN 4621 80 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/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2697 4482 1009 AMAZON-02, US 14618 544 3986 414 AMAZON-AES, US 7896 250 51 7 NU-AS, US 668 211 702 182 DNIC-AS-00668, US 376 204 178 153 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 2152 155 498 83 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 1 120 1 41 LVLT-1, US 270 119 329 88 AS270, US Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 276 1998 237 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 177 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 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 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/Internet2/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 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 52286 53 4 31 Columbus Networks Guatemala, GT 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 43 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 343 319 73 TENET-1, ZA 327687 125 28 3 RENU, UG 36914 98 82 3 KENET-AS, KE 2561 73 5 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 15 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2697 4482 1009 AMAZON-02, US 2907 618 2125 456 SINET-AS Research Organization of Infor 14618 544 3986 414 AMAZON-AES, US 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 343 319 73 TENET-1, ZA 680 276 1998 237 DFN Verein zur Foerderung eines Deutsch 7896 250 51 7 NU-AS, US 668 211 702 182 DNIC-AS-00668, US 376 204 178 153 RISQ-AS, CA 1916 204 207 42 Associacao Rede Nacional de Ensino e Pe Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 430 406 CSTNET-AS-AP Computer Network Information Cente 2018 343 270 TENET-1, ZA 7896 250 243 NU-AS, US 5786 195 194 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 2907 618 162 SINET-AS Research Organization of Information a 1916 204 162 Associacao Rede Nacional de Ensino e Pesquisa, 18558 136 132 NETBLK-RCOEK, US 14618 544 130 AMAZON-AES, US Complete listing at https://bgp.nsrc.org/REN/Internet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 29955 UNALLOCATED 192.104.1.0/24 2495 KANREN, US 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 29955 UNALLOCATED 198.252.8.0/21 2495 KANREN, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 396334 UNALLOCATED 205.143.136.0/21 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.136.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.137.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.138.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.139.0/24 5078 ONENET-AS-1, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 103.151.24.0/24 Origin: 16509 AMAZON-02, US 103.151.24.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, US 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /13:25 /14:60 /15:174 /16:2092 /17:448 /18:466 /19:596 /20:974 /21:1002 /22:1584 /23:1724 /24:12709 /25:80 /26:68 /27:123 /28:1 /29:49 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 707 2697 AMAZON-02, US 14618 178 544 AMAZON-AES, US 8895 172 177 ISU Internet Services Unit ISU, SA 36914 84 98 KENET-AS, KE 23024 53 56 OCDE, US 327700 37 43 MoRENet, MZ 1 35 120 LVLT-1, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:79 4:2 5:16 6:4 8:2 12:1 13:165 14:83 15:34 16:3 18:44 23:34 24:6 31:6 37:6 38:9 40:1 41:151 42:8 44:5 45:81 46:8 47:1 49:10 50:6 52:668 54:179 58:1 59:20 60:4 61:3 62:7 63:38 64:126 65:5 66:54 67:60 68:18 69:47 70:9 71:17 72:17 74:40 75:128 76:164 77:8 78:3 79:10 80:17 81:27 82:6 83:7 84:9 85:37 86:9 87:1 88:1 89:12 91:54 92:1 93:19 94:4 95:6 96:6 97:1 98:11 99:181 101:6 102:16 103:336 104:46 106:1 107:8 108:19 109:11 110:3 111:20 112:4 114:23 116:5 117:61 118:32 119:20 121:26 122:11 123:8 124:39 125:4 128:83 129:181 130:120 131:93 132:61 133:138 134:101 135:1 136:198 137:150 138:9 139:16 140:50 141:3 142:59 143:37 144:68 145:1 146:126 147:66 148:167 149:16 150:39 151:7 152:79 153:11 154:24 155:59 156:70 157:27 158:45 159:120 160:32 161:20 162:51 163:67 164:52 165:61 166:1 167:22 168:205 169:10 170:98 171:1 172:10 173:11 174:1 175:31 176:12 177:10 178:3 179:13 180:21 181:12 182:6 184:5 185:55 186:3 187:18 188:14 189:3 190:54 191:37 192:1481 193:258 194:123 195:87 196:172 197:5 198:501 199:310 200:237 201:39 202:642 203:427 204:346 205:201 206:204 207:191 208:84 209:133 210:184 211:14 212:172 213:13 214:7 216:139 217:14 218:25 219:8 220:17 222:5 223:2 End of report