IPv4 R&E Routing Table Report 22:10 GMT Thu 14 Dec, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25783 Prefixes after maximum aggregation (per Origin AS): 12561 Deaggregation factor: 2.05 Unique aggregates announced (without unneeded subnets): 14169 Number of IPv4 prefixes with a valid ROA: 12715 Number of IPv4 prefixes with an invalid ROA: 196 Number of IPv4 prefixes with no ROA: 12872 Total ASes present in the Internet Routing Table: 2778 Prefixes per ASN: 9.28 Origin-only ASes present in the Internet Routing Table: 2391 Origin ASes announcing only one prefix: 1068 Transit ASes present in the Internet Routing Table: 387 Transit-only ASes present in the Internet Routing Table: 71 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 16 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43225 Number of 32-bit ASNs visible in the Routing Table: 656 Prefixes from 32-bit ASNs in the Routing Table: 4726 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: 7 Number of addresses announced to Internet: 241857612 Equivalent to 14 /8s, 106 /16s and 116 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3604 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4667 Total APNIC prefixes after maximum aggregation: 2287 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4717 Unique aggregates announced from the APNIC address blocks: 2643 APNIC Region origin ASes present in the Internet Routing Table: 545 APNIC Prefixes per ASN: 8.66 APNIC Region origin ASes announcing only one prefix: 232 APNIC Region transit ASes present in the Internet Routing Table: 60 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 209 Number of APNIC addresses announced to Internet: 45582656 Equivalent to 2 /8s, 183 /16s and 137 /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 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: 14552 Total ARIN prefixes after maximum aggregation: 6520 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14349 Unique aggregates announced from the ARIN address blocks: 7332 ARIN Region origin ASes present in the Internet Routing Table: 1242 ARIN Prefixes per ASN: 11.55 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 201 Number of ARIN addresses announced to Internet: 131572865 Equivalent to 7 /8s, 215 /16s and 164 /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: 3659 Total RIPE prefixes after maximum aggregation: 2906 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3814 Unique aggregates announced from the RIPE address blocks: 3136 RIPE Region origin ASes present in the Internet Routing Table: 702 RIPE Prefixes per ASN: 5.43 RIPE Region origin ASes announcing only one prefix: 316 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 150 Number of RIPE addresses announced to Internet: 58053376 Equivalent to 3 /8s, 117 /16s and 211 /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 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: 1564 Total LACNIC prefixes after maximum aggregation: 663 LACNIC Deaggregation factor: 2.36 Prefixes being announced from the LACNIC address blocks: 1566 Unique aggregates announced from the LACNIC address blocks: 825 LACNIC Region origin ASes present in the Internet Routing Table: 163 LACNIC Prefixes per ASN: 9.61 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4001163 Equivalent to 0 /8s, 61 /16s and 13 /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: 1330 Total AfriNIC prefixes after maximum aggregation: 176 AfriNIC Deaggregation factor: 7.56 Prefixes being announced from the AfriNIC address blocks: 1330 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 53 AfriNIC Prefixes per ASN: 25.09 AfriNIC Region origin ASes announcing only one prefix: 28 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30 Number of AfriNIC addresses announced to Internet: 2645760 Equivalent to 0 /8s, 40 /16s and 95 /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 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 1237 196 74 142 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 127 19 17 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 69 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2736 3637 383 GOOGLE-CLOUD-PLATFORM, US 16509 2188 1641 886 AMAZON-02, US 14618 845 4032 637 AMAZON-AES, US 15169 828 1997 60 GOOGLE, US 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 165 12 38 GOOGLEWIFI, US 2152 145 507 93 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 158 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 76 462 76 BELWUE BelWue-Koordination, DE 2200 63 598 58 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 27947 119 0 92 Telconet S.A, EC 11340 107 25 51 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 51 17 4 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 42 67 32 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 518 82 3 KENET-AS, KE 2018 376 319 71 TENET-1, ZA 327687 160 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37215 12 8 1 MAREN, MW 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2736 3637 383 GOOGLE-CLOUD-PLATFORM, US 16509 2188 1641 886 AMAZON-02, US 14618 845 4032 637 AMAZON-AES, US 15169 828 1997 60 GOOGLE, US 2907 603 2162 466 SINET-AS Research Organization of Infor 36914 518 82 3 KENET-AS, KE 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 376 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2188 1302 AMAZON-02, US 15169 828 768 GOOGLE, US 36914 518 515 KENET-AS, KE 7497 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 376 305 TENET-1, ZA 14618 845 208 AMAZON-AES, US 1916 250 207 Rede Nacional de Ensino e Pesquisa, BR 5786 197 196 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 327687 160 157 RENU, UG Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US 11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US 11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.117.204.0/24 Origin: 14618 AMAZON-AES, US 216.117.204.0/24 Transit: 16509 AMAZON-02, US 216.117.205.0/24 Origin: 14618 AMAZON-AES, US 216.117.205.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2104 /17:512 /18:494 /19:738 /20:2793 /21:1037 /22:1669 /23:1734 /24:13991 /25:90 /26:66 /27:73 /28:20 /29:82 /30:34 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 503 518 KENET-AS, KE 16509 298 2188 AMAZON-02, US 15169 276 828 GOOGLE, US 14618 269 845 AMAZON-AES, US 396982 202 2736 GOOGLE-CLOUD-PLATFORM, US 8895 153 158 ISU Internet Services Unit ISU, SA 27947 96 119 Telconet S.A, EC 32440 80 112 LONI, US 23024 52 109 OCDE, US 1916 40 250 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:82 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:66 23:111 24:3 31:9 34:23 35:51 38:9 40:5 41:228 42:10 43:2 44:9 45:60 46:11 47:1 49:9 50:3 52:558 54:228 58:1 59:19 60:5 61:3 62:11 63:35 64:162 65:13 66:73 67:61 68:14 69:35 70:44 71:3 72:13 74:145 76:47 77:11 78:3 79:10 80:13 81:25 82:7 83:7 84:10 85:32 86:4 87:4 88:1 89:19 91:58 92:5 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:35 103:299 104:218 107:33 108:103 109:10 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:40 125:5 128:87 129:48 130:138 131:68 132:63 133:155 134:109 135:3 136:295 137:141 138:10 139:17 140:40 141:7 142:280 143:23 144:41 145:3 146:136 147:69 148:202 149:16 150:44 151:16 152:135 153:14 154:30 155:73 156:68 157:24 158:38 159:148 160:30 161:28 162:92 163:73 164:23 165:52 166:1 167:24 168:152 169:12 170:144 171:1 172:114 173:117 174:2 175:18 176:11 177:6 178:1 179:9 180:15 182:1 184:2 185:110 186:3 187:18 188:20 189:3 190:4 191:13 192:1504 193:318 194:122 195:96 196:199 197:318 198:482 199:305 200:319 201:35 202:627 203:425 204:374 205:149 206:204 207:178 208:135 209:166 210:195 211:14 212:160 213:15 216:169 217:12 218:22 219:5 220:16 222:2 223:14 End of report