IPv4 R&E Routing Table Report 22:15 GMT Fri 08 Nov, 2024 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: 27094 Prefixes after maximum aggregation (per Origin AS): 13589 Deaggregation factor: 1.99 Unique aggregates announced (without unneeded subnets): 15465 Number of IPv4 prefixes with a valid ROA: 15573 Number of IPv4 prefixes with an invalid ROA: 12 Number of IPv4 prefixes with no ROA: 11509 Total ASes present in the Internet Routing Table: 2800 Prefixes per ASN: 9.68 Origin-only ASes present in the Internet Routing Table: 2425 Origin ASes announcing only one prefix: 1077 Transit ASes present in the Internet Routing Table: 375 Transit-only ASes present in the Internet Routing Table: 61 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.7 Max AS path length visible: 28 Max AS path prepend of ASN (138136) 20 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 45808 Number of 32-bit ASNs visible in the Routing Table: 700 Prefixes from 32-bit ASNs in the Routing Table: 4870 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: 3 Number of addresses announced to Internet: 308506256 Equivalent to 18 /8s, 99 /16s and 110 /24s Percentage of available address space announced: 8.3 Percentage of allocated address space announced: 6.5 Percentage of available address space allocated: 127.5 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 14007 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4751 Total APNIC prefixes after maximum aggregation: 2320 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 513 Unique aggregates announced from the APNIC address blocks: 414 APNIC Region origin ASes present in the Internet Routing Table: 586 APNIC Prefixes per ASN: 0.88 APNIC Region origin ASes announcing only one prefix: 244 APNIC Region transit ASes present in the Internet Routing Table: 60 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 233 Number of APNIC addresses announced to Internet: 7601216 Equivalent to 0 /8s, 115 /16s and 252 /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, 131072-153913 APNIC Address Blocks 43/8, 45/8, 146/8, 150/8, 160/8, 163/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 16138 Total ARIN prefixes after maximum aggregation: 7651 ARIN Deaggregation factor: 2.11 Prefixes being announced from the ARIN address blocks: 5230 Unique aggregates announced from the ARIN address blocks: 3811 ARIN Region origin ASes present in the Internet Routing Table: 1272 ARIN Prefixes per ASN: 4.11 ARIN Region origin ASes announcing only one prefix: 448 ARIN Region transit ASes present in the Internet Routing Table: 155 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 217 Number of ARIN addresses announced to Internet: 27930368 Equivalent to 1 /8s, 170 /16s and 47 /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, 393216-402332 ARIN Address Blocks 66/8, 139/8, 144/8, 149/8, 162/8, 164/8, 192/8, 198/8, 199/8, 204/8, 205/8, 207/8, 208/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 3617 Total RIPE prefixes after maximum aggregation: 2904 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 923 Unique aggregates announced from the RIPE address blocks: 880 RIPE Region origin ASes present in the Internet Routing Table: 674 RIPE Prefixes per ASN: 1.37 RIPE Region origin ASes announcing only one prefix: 300 RIPE Region transit ASes present in the Internet Routing Table: 107 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 159 Number of RIPE addresses announced to Internet: 11476224 Equivalent to 0 /8s, 175 /16s and 29 /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 196608-216475 RIPE Address Blocks 152/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 1528 Total LACNIC prefixes after maximum aggregation: 541 LACNIC Deaggregation factor: 2.82 Prefixes being announced from the LACNIC address blocks: 252 Unique aggregates announced from the LACNIC address blocks: 199 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 1.63 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 3.8 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 1052672 Equivalent to 0 /8s, 16 /16s and 16 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 128/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1059 Total AfriNIC prefixes after maximum aggregation: 172 AfriNIC Deaggregation factor: 6.16 Prefixes being announced from the AfriNIC address blocks: 84 Unique aggregates announced from the AfriNIC address blocks: 51 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 1.65 AfriNIC Region origin ASes announcing only one prefix: 31 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 609280 Equivalent to 0 /8s, 9 /16s and 76 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 161/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 600 2170 465 SINET-AS Research Organization of Informa 7497 447 180 24 CSTNET-AS-AP Computer Network Information 1237 193 74 145 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Rese 55824 132 18 19 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Resear 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 69 37 10 UNINET-AS-AP UNINET-, TH 2697 60 4 35 ERX-ERNET-AS Education and Research Netwo 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 396982 2865 3654 419 GOOGLE-CLOUD-PLATFORM, US 16509 2367 1749 1064 AMAZON-02, US 14618 1017 4444 768 AMAZON-AES, US 15169 904 2007 68 GOOGLE, US 8075 681 16014 572 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 201 162 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2920 175 34 7 LACOE, US 2152 150 507 97 CENIC-2152, US 18558 140 18 4 NETBLK-RCOEK, 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 680 281 1899 248 DFN Verein zur Foerderung eines Deutschen 786 186 1767 183 JANET Jisc Services Limited, GB 8895 133 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch.c 1103 97 1759 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 26 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 77 26 67 NIKS, RU 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 293 178 44 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M 11340 110 25 53 Red Universitaria Nacional, CL 271640 66 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 50 100 36 Fundacao Carlos Chagas Filho de Amparo a 61468 50 5 17 CEDIA, EC 4270 48 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 3596 40 8 4 Universidad Autonoma Metropolitana, MX 28614 38 2 2 Fundacao Universidade Regional de Blumena 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 36914 451 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 15 8 2 UG-AS, GH 327700 15 16 1 MoRENet, MZ 37661 12 8 4 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 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 396982 2865 3654 419 GOOGLE-CLOUD-PLATFORM, US 16509 2367 1749 1064 AMAZON-02, US 14618 1017 4444 768 AMAZON-AES, US 15169 904 2007 68 GOOGLE, US 8075 681 16014 572 MICROSOFT-CORP-MSN-AS-BLOCK, US 2907 600 2170 465 SINET-AS Research Organization of Informa 36914 451 82 3 KENET-AS, KE 7497 447 180 24 CSTNET-AS-AP Computer Network Information 2018 381 319 71 TENET-1, ZA 1916 293 178 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 16509 2367 1303 AMAZON-02, US 15169 904 836 GOOGLE, US 36914 451 448 KENET-AS, KE 7497 447 423 CSTNET-AS-AP Computer Network Information Cente 2018 381 310 TENET-1, ZA 14618 1017 249 AMAZON-AES, US 1916 293 249 Rede Nacional de Ensino e Pesquisa, BR 5786 197 196 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 2920 175 168 LACOE, US 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 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.192.0/21 Origin: 37661 NRaE1-AS, NG 164.160.192.0/21 Transit: 37288 WACREN, SN 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 204.153.219.0/24 Origin: 14618 AMAZON-AES, US 204.153.219.0/24 Transit: 16509 AMAZON-02, US 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 /10:3 /11:10 /12:34 /13:50 /14:107 /15:197 /16:2286 /17:556 /18:536 /19:764 /20:2812 /21:1118 /22:1688 /23:1801 /24:14950 /25:50 /26:71 /27:34 /28:6 /29:14 /30:3 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 396982 2657 2865 GOOGLE-CLOUD-PLATFORM, US 16509 2143 2367 AMAZON-02, US 15169 814 904 GOOGLE, US 14618 715 1017 AMAZON-AES, US 8075 368 681 MICROSOFT-CORP-MSN-AS-BLOCK, US 7497 263 447 CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS, CN 5786 196 197 UPRENET, PR 28391 154 154 Universidad Juarez Autonoma de Tabasco, MX 58647 149 180 KAGAWAU-AS Kagawa University, JP 36914 128 451 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 2:1 3:103 5:23 8:28 12:1 13:79 14:92 15:73 16:119 18:84 23:112 24:3 31:5 34:22 35:49 36:1 37:8 38:10 40:5 41:162 42:11 43:2 44:6 45:77 46:11 47:1 49:10 50:7 52:556 54:163 57:5 59:19 60:6 61:3 62:17 63:37 64:159 65:20 66:86 67:68 68:18 69:49 70:41 71:3 72:14 74:158 75:1 76:47 77:12 78:3 79:10 80:13 81:26 82:7 83:7 84:7 85:51 86:5 87:4 88:1 89:21 91:61 92:9 93:45 94:6 95:3 96:7 97:1 98:11 99:48 101:2 102:15 103:365 104:229 107:37 108:113 109:7 111:21 113:6 114:32 115:1 116:11 117:62 118:33 119:23 121:28 122:8 123:8 124:42 125:5 128:57 129:41 130:151 131:71 132:65 133:154 134:108 135:7 136:304 137:70 138:67 139:18 140:43 141:10 142:332 143:31 144:47 145:7 146:138 147:77 148:203 149:17 150:47 151:38 152:152 153:14 154:39 155:92 156:142 157:38 158:40 159:154 160:32 161:39 162:89 163:67 164:27 165:68 166:5 167:24 168:173 169:14 170:167 171:1 172:115 173:112 174:2 175:16 176:3 177:5 178:3 179:13 180:16 181:1 182:11 184:7 185:140 186:3 187:21 188:19 189:3 190:18 191:13 192:1551 193:297 194:132 195:79 196:147 197:323 198:502 199:348 200:337 201:37 202:645 203:452 204:411 205:161 206:233 207:255 208:156 209:199 210:218 211:3 212:173 213:21 216:212 217:14 218:21 219:5 220:17 222:2 223:15 End of report