Global R&E Routing Table Report 20:00 GMT Thu 15 Jul, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19128 Prefixes after maximum aggregation (per Origin AS): 10718 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 12094 Total ASes present in the Internet Routing Table: 2799 Prefixes per ASN: 6.83 Origin-only ASes present in the Internet Routing Table: 2390 Origin ASes announcing only one prefix: 1100 Transit ASes present in the Internet Routing Table: 409 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 23 Number of instances of unregistered ASNs: 23 Number of 32-bit ASNs allocated by the RIRs: 36623 Number of 32-bit ASNs visible in the Routing Table: 602 Prefixes from 32-bit ASNs in the Routing Table: 1739 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: 208594476 Equivalent to 12 /8s, 110 /16s and 230 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2192 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4839 Total APNIC prefixes after maximum aggregation: 2384 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4841 Unique aggregates announced from the APNIC address blocks: 2721 APNIC Region origin ASes present in the Internet Routing Table: 576 APNIC Prefixes per ASN: 8.40 APNIC Region origin ASes announcing only one prefix: 243 APNIC Region transit ASes present in the Internet Routing Table: 66 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 215 Number of APNIC addresses announced to Internet: 46315116 Equivalent to 2 /8s, 194 /16s and 182 /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: 8375 Total ARIN prefixes after maximum aggregation: 4784 ARIN Deaggregation factor: 1.75 Prefixes being announced from the ARIN address blocks: 8395 Unique aggregates announced from the ARIN address blocks: 5484 ARIN Region origin ASes present in the Internet Routing Table: 1234 ARIN Prefixes per ASN: 6.80 ARIN Region origin ASes announcing only one prefix: 444 ARIN Region transit ASes present in the Internet Routing Table: 168 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 156 Number of ARIN addresses announced to Internet: 97266176 Equivalent to 5 /8s, 204 /16s and 42 /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: 3415 Total RIPE prefixes after maximum aggregation: 2751 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3414 Unique aggregates announced from the RIPE address blocks: 2758 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.06 RIPE Region origin ASes announcing only one prefix: 320 RIPE Region transit ASes present in the Internet Routing Table: 108 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 131 Number of RIPE addresses announced to Internet: 58111360 Equivalent to 3 /8s, 118 /16s and 181 /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: 1587 Total LACNIC prefixes after maximum aggregation: 595 LACNIC Deaggregation factor: 2.67 Prefixes being announced from the LACNIC address blocks: 1585 Unique aggregates announced from the LACNIC address blocks: 826 LACNIC Region origin ASes present in the Internet Routing Table: 179 LACNIC Prefixes per ASN: 8.85 LACNIC Region origin ASes announcing only one prefix: 70 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4213824 Equivalent to 0 /8s, 64 /16s and 76 /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: 889 Total AfriNIC prefixes after maximum aggregation: 187 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 889 Unique aggregates announced from the AfriNIC address blocks: 301 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.14 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.1 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: 2686976 Equivalent to 0 /8s, 41 /16s and 0 /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 195 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 82 45 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/SingAREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 245 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 5786 185 16 1 UPRENET, PR 2152 161 507 92 CSUNET-NW, US 18558 132 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 23024 114 7 17 OCDE, US 2920 112 34 6 LACOE, US 21976 88 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/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 94 24 54 Red Universitaria Nacional, CL 27884 94 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 61468 45 3 15 CEDIA, EC 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/SingAREN/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 134 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 37182 11 8 1 TERNET, TZ Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-AFRINIC Global 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 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 668 209 702 180 DNIC-AS-00668, US 1916 202 207 41 Associacao Rede Nacional de Ensino e Pe 58647 198 18 2 KAGAWAU-AS Kagawa University, JP 1237 195 75 137 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 431 406 CSTNET-AS-AP Computer Network Information Cente 2018 329 255 TENET-1, ZA 7896 245 238 NU-AS, US 58647 198 196 KAGAWAU-AS Kagawa University, JP 5786 185 184 UPRENET, PR 8895 173 169 ISU Internet Services Unit ISU, SA 1916 202 161 Associacao Rede Nacional de Ensino e Pesquisa, 327687 134 131 RENU, UG 18558 132 128 NETBLK-RCOEK, US 55824 129 106 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/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/SingAREN/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: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re 192.107.242.0/24 Origin: 394784 UNASSIGNED Transit: 40831 PHS, US 205.166.145.0/24 Origin: 394784 UNASSIGNED Transit: 40831 PHS, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 /11:1 /12:10 /13:18 /14:37 /15:118 /16:2050 /17:385 /18:421 /19:593 /20:899 /21:918 /22:1438 /23:1538 /24:10406 /25:87 /26:65 /27:53 /28:34 /29:33 /30:15 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8895 168 173 ISU Internet Services Unit ISU, SA 27884 91 94 CABLECOLOR S.A., HN 36914 85 98 KENET-AS, KE 23024 53 114 OCDE, US 58647 34 198 KAGAWAU-AS Kagawa University, JP 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 38 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 18632 29 55 VOLCANO-VISION, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 5:15 6:4 8:2 12:1 14:84 18:41 23:7 24:6 31:6 37:6 38:9 40:1 41:141 42:26 44:5 45:65 46:7 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:7 63:38 64:55 65:5 66:53 67:45 68:8 69:17 71:1 72:14 74:19 76:33 77:6 78:3 79:10 80:14 81:32 82:3 83:7 84:8 85:33 86:9 87:1 88:1 89:10 91:46 92:1 93:12 94:4 95:5 96:5 97:1 98:2 101:2 102:9 103:295 104:73 106:1 107:17 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:4 117:61 118:35 119:19 121:29 122:8 123:8 124:41 125:13 128:81 129:173 130:91 131:97 132:60 133:137 134:93 136:177 137:147 138:10 139:5 140:50 141:2 142:43 143:39 144:53 146:125 147:71 148:160 149:13 150:39 151:6 152:77 153:11 154:24 155:49 156:64 157:25 158:44 159:110 160:26 161:17 162:25 163:65 164:40 165:16 166:1 167:16 168:130 169:9 170:67 171:1 172:2 173:7 175:32 176:8 177:8 178:1 179:13 180:21 181:11 182:6 184:4 185:40 186:3 187:18 188:13 189:6 190:139 191:36 192:1442 193:252 194:144 195:93 196:168 197:4 198:514 199:275 200:256 201:39 202:638 203:435 204:355 205:177 206:193 207:177 208:60 209:121 210:188 211:14 212:168 213:4 214:7 216:79 217:16 218:26 219:8 220:24 222:4 223:2 End of report