IPv4 R&E Routing Table Report 22:15 GMT Sat 13 May, 2023 IPv4 BGP Table (R&E) as seen at RedCLARA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RedCLARA/ Analysis Summary ---------------- BGP routing table entries examined: 18491 Prefixes after maximum aggregation (per Origin AS): 10375 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 11501 Number of IPv4 prefixes with a valid ROA: 4487 Number of IPv4 prefixes with an invalid ROA: 109 Number of IPv4 prefixes with no ROA: 13895 Total ASes present in the Internet Routing Table: 2713 Prefixes per ASN: 6.82 Origin-only ASes present in the Internet Routing Table: 2334 Origin ASes announcing only one prefix: 1032 Transit ASes present in the Internet Routing Table: 379 Transit-only ASes present in the Internet Routing Table: 68 Paths with bogon ASNs present in the IPv4 Routing Table: 88 Average AS path length visible in the Internet Routing Table: 4.1 Max AS path length visible: 19 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 87 Number of instances of unregistered ASNs: 87 Number of 32-bit ASNs allocated by the RIRs: 41860 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 1801 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 1 Number of addresses announced to Internet: 202151321 Equivalent to 12 /8s, 12 /16s and 149 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 2196 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4619 Total APNIC prefixes after maximum aggregation: 2251 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4620 Unique aggregates announced from the APNIC address blocks: 2564 APNIC Region origin ASes present in the Internet Routing Table: 531 APNIC Prefixes per ASN: 8.70 APNIC Region origin ASes announcing only one prefix: 221 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 199 Number of APNIC addresses announced to Internet: 45672256 Equivalent to 2 /8s, 184 /16s and 231 /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: 7782 Total ARIN prefixes after maximum aggregation: 4489 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 7800 Unique aggregates announced from the ARIN address blocks: 5016 ARIN Region origin ASes present in the Internet Routing Table: 1212 ARIN Prefixes per ASN: 6.44 ARIN Region origin ASes announcing only one prefix: 424 ARIN Region transit ASes present in the Internet Routing Table: 156 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 186 Number of ARIN addresses announced to Internet: 91842720 Equivalent to 5 /8s, 121 /16s and 104 /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: 3605 Total RIPE prefixes after maximum aggregation: 2842 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3593 Unique aggregates announced from the RIPE address blocks: 2894 RIPE Region origin ASes present in the Internet Routing Table: 685 RIPE Prefixes per ASN: 5.25 RIPE Region origin ASes announcing only one prefix: 305 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 145 Number of RIPE addresses announced to Internet: 58009856 Equivalent to 3 /8s, 117 /16s and 41 /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: 1458 Total LACNIC prefixes after maximum aggregation: 578 LACNIC Deaggregation factor: 2.52 Prefixes being announced from the LACNIC address blocks: 1537 Unique aggregates announced from the LACNIC address blocks: 798 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 9.55 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4021945 Equivalent to 0 /8s, 61 /16s and 94 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 940 Total AfriNIC prefixes after maximum aggregation: 172 AfriNIC Deaggregation factor: 5.47 Prefixes being announced from the AfriNIC address blocks: 940 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.18 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2604288 Equivalent to 0 /8s, 39 /16s and 189 /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 2154 466 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 192 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 118 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2152 140 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 109 34 7 LACOE, US 32440 107 35 18 LONI, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 174 24 3 ISU Internet Services Unit ISU, SA 559 112 533 104 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 181 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 102 24 46 Red Universitaria Nacional, CL 1251 59 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 61468 46 3 14 CEDIA, EC 4270 45 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 377 319 71 TENET-1, ZA 36914 255 82 3 KENET-AS, KE 327687 56 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 33 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2154 466 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 377 319 71 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 255 82 3 KENET-AS, KE 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 192 74 139 KREONET-AS-KR KISTI, KR 786 186 1775 183 JANET Jisc Services Limited, GB 1916 181 208 44 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 377 306 TENET-1, ZA 36914 255 252 KENET-AS, KE 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 174 171 ISU Internet Services Unit ISU, SA 1916 181 137 Rede Nacional de Ensino e Pesquisa, BR 18558 134 130 NETBLK-RCOEK, US 65085 158 123 UNASSIGNED 55824 118 107 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 65248 PRIVATE 134.171.169.0/24 11340 Red Universitaria Nacional, 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 65085 PRIVATE 200.17.33.0/24 1916 Rede Nacional de Ensino e Pe 65085 PRIVATE 200.17.34.0/24 1916 Rede Nacional de Ensino e Pe 65085 PRIVATE 200.17.35.0/24 1916 Rede Nacional de Ensino e Pe 65085 PRIVATE 200.17.36.0/24 1916 Rede Nacional de Ensino e Pe Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 /14:35 /15:121 /16:1967 /17:408 /18:430 /19:559 /20:837 /21:834 /22:1464 /23:1514 /24:9994 /25:92 /26:73 /27:91 /28:7 /29:15 /30:10 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 243 255 KENET-AS, KE 8895 169 174 ISU Internet Services Unit ISU, SA 32440 79 107 LONI, US 23024 52 113 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 55 SEAP-AGE, ES 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:89 23:8 24:3 31:7 35:6 38:9 40:1 41:107 42:10 44:5 45:40 46:5 47:1 49:6 50:1 52:1 58:1 59:19 60:4 61:3 62:11 63:33 64:52 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:40 77:9 78:3 79:10 80:17 81:26 82:7 83:6 84:8 85:42 86:4 87:1 89:10 91:48 92:2 93:4 94:4 95:2 96:5 97:1 98:2 101:2 102:15 103:243 104:77 108:8 109:9 110:2 111:16 114:23 116:6 117:61 118:32 119:21 121:29 122:8 123:8 124:39 125:4 128:87 129:41 130:87 131:58 132:52 133:157 134:99 136:198 137:86 138:9 139:6 140:35 141:1 142:39 143:29 144:23 145:2 146:131 147:54 148:192 149:12 150:130 151:10 152:144 153:14 154:30 155:55 156:67 157:35 158:35 159:115 160:27 161:20 162:19 163:74 164:10 165:51 166:1 167:13 168:125 169:7 170:63 171:1 172:3 173:7 175:19 176:8 177:9 179:11 180:15 181:1 182:1 184:3 185:49 186:3 187:18 188:13 189:3 190:18 191:36 192:1416 193:300 194:130 195:76 196:165 197:161 198:459 199:246 200:313 201:39 202:624 203:428 204:344 205:124 206:180 207:165 208:67 209:112 210:187 211:17 212:168 213:5 216:86 217:10 218:22 219:6 220:16 222:5 223:4 End of report