Global R&E Routing Table Report 22:05 GMT Mon 12 Jul, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/ Analysis Summary ---------------- BGP routing table entries examined: 22016 Prefixes after maximum aggregation (per Origin AS): 12140 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 14414 Total ASes present in the Internet Routing Table: 2792 Prefixes per ASN: 7.89 Origin-only ASes present in the Internet Routing Table: 2386 Origin ASes announcing only one prefix: 1104 Transit ASes present in the Internet Routing Table: 406 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 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: 36597 Number of 32-bit ASNs visible in the Routing Table: 595 Prefixes from 32-bit ASNs in the Routing Table: 1716 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: 289580544 Equivalent to 17 /8s, 66 /16s and 166 /24s Percentage of available address space announced: 7.8 Percentage of allocated address space announced: 7.8 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: 2847 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4697 Total APNIC prefixes after maximum aggregation: 2357 APNIC Deaggregation factor: 1.99 Prefixes being announced from the APNIC address blocks: 4750 Unique aggregates announced from the APNIC address blocks: 2739 APNIC Region origin ASes present in the Internet Routing Table: 572 APNIC Prefixes per ASN: 8.30 APNIC Region origin ASes announcing only one prefix: 244 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 213 Number of APNIC addresses announced to Internet: 47077120 Equivalent to 2 /8s, 206 /16s and 87 /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: 11503 Total ARIN prefixes after maximum aggregation: 6259 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 11387 Unique aggregates announced from the ARIN address blocks: 7689 ARIN Region origin ASes present in the Internet Routing Table: 1245 ARIN Prefixes per ASN: 9.15 ARIN Region origin ASes announcing only one prefix: 447 ARIN Region transit ASes present in the Internet Routing Table: 167 Average ARIN Region AS path length visible: 3.7 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: 175236864 Equivalent to 10 /8s, 113 /16s and 231 /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: 3350 Total RIPE prefixes after maximum aggregation: 2728 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3427 Unique aggregates announced from the RIPE address blocks: 2852 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.10 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 108 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 130 Number of RIPE addresses announced to Internet: 59805184 Equivalent to 3 /8s, 144 /16s and 142 /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: 593 LACNIC Deaggregation factor: 2.62 Prefixes being announced from the LACNIC address blocks: 1552 Unique aggregates announced from the LACNIC address blocks: 825 LACNIC Region origin ASes present in the Internet Routing Table: 178 LACNIC Prefixes per ASN: 8.72 LACNIC Region origin ASes announcing only one prefix: 68 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 75 Number of LACNIC addresses announced to Internet: 4674304 Equivalent to 0 /8s, 71 /16s and 83 /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: 891 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 4.79 Prefixes being announced from the AfriNIC address blocks: 894 Unique aggregates announced from the AfriNIC address blocks: 303 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 18.62 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2785536 Equivalent to 0 /8s, 42 /16s and 129 /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 607 2155 455 SINET-AS Research Organization of Infor 7497 435 215 29 CSTNET-AS-AP Computer Network Informati 1237 189 75 137 KREONET-AS-KR KISTI, KR 7575 179 330 125 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 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/CENIC/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2264 4235 792 AMAZON-02, US 14618 495 3967 367 AMAZON-AES, US 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 8075 205 11189 184 MICROSOFT-CORP-MSN-AS-BLOCK, US 5786 184 16 1 UPRENET, PR 2152 158 507 90 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US Complete listing at https://bgp.nsrc.org/REN/CENIC/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 786 188 1787 185 JANET Jisc Services Limited, GB 8895 141 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 55 78 50 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 178 207 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 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/CENIC/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 137 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/CENIC/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2264 4235 792 AMAZON-02, US 2907 607 2155 455 SINET-AS Research Organization of Infor 14618 495 3967 367 AMAZON-AES, US 7497 435 215 29 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 376 235 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 8075 205 11189 184 MICROSOFT-CORP-MSN-AS-BLOCK, US Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 406 CSTNET-AS-AP Computer Network Information Cente 2018 329 255 TENET-1, ZA 7896 245 238 NU-AS, US 5786 184 183 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 2907 607 152 SINET-AS Research Organization of Information a 1916 178 137 Associacao Rede Nacional de Ensino e Pesquisa, 8895 141 137 ISU Internet Services Unit ISU, SA 327687 137 134 RENU, UG 18558 137 133 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/CENIC/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/CENIC/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/CENIC/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/CENIC/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 /10:4 /11:7 /12:29 /13:34 /14:81 /15:194 /16:2155 /17:445 /18:453 /19:631 /20:993 /21:1012 /22:1579 /23:1672 /24:12726 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 624 2264 AMAZON-02, US 14618 159 495 AMAZON-AES, US 8895 136 141 ISU Internet Services Unit ISU, SA 27884 91 94 CABLECOLOR S.A., HN 36914 85 98 KENET-AS, KE 23024 53 114 OCDE, US 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 Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:78 4:2 5:15 6:4 8:2 12:1 13:211 14:84 15:17 18:41 23:23 24:6 31:6 35:1 37:6 38:9 40:3 41:141 42:22 44:5 45:72 46:10 47:1 49:10 50:8 52:595 54:107 58:2 59:20 60:4 61:4 62:7 63:38 64:123 65:12 66:67 67:58 68:18 69:42 70:7 71:9 72:19 74:39 75:128 76:166 77:8 78:3 79:10 80:14 81:32 82:5 83:7 84:4 85:36 86:9 87:1 88:1 89:11 91:54 92:1 93:12 94:4 95:4 96:6 97:1 98:8 99:173 101:2 102:9 103:307 104:102 106:1 107:24 108:21 109:8 110:3 111:21 112:4 113:1 114:23 115:1 116:6 117:63 118:35 119:19 121:29 122:11 123:8 124:40 125:8 128:86 129:179 130:114 131:110 132:60 133:137 134:93 135:1 136:187 137:159 138:15 139:16 140:50 141:3 142:61 143:41 144:64 146:126 147:72 148:167 149:16 150:47 151:8 152:76 153:11 154:25 155:55 156:64 157:29 158:47 159:118 160:33 161:20 162:51 163:69 164:48 165:22 166:1 167:20 168:163 169:9 170:109 171:1 172:10 173:24 174:1 175:32 176:11 177:8 178:3 179:14 180:21 181:11 182:6 184:10 185:53 186:3 187:18 188:14 189:6 190:139 191:36 192:1497 193:250 194:129 195:87 196:171 197:4 198:534 199:308 200:256 201:39 202:642 203:428 204:384 205:204 206:198 207:191 208:91 209:138 210:189 211:14 212:169 213:13 214:7 216:102 217:16 218:26 219:8 220:24 222:4 223:2 End of report