IPv4 R&E Routing Table Report 22:10 GMT Fri 17 Mar, 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: 25086 Prefixes after maximum aggregation (per Origin AS): 12401 Deaggregation factor: 2.02 Unique aggregates announced (without unneeded subnets): 14079 Number of IPv4 prefixes with a valid ROA: 10801 Number of IPv4 prefixes with an invalid ROA: 182 Number of IPv4 prefixes with no ROA: 14103 Total ASes present in the Internet Routing Table: 2775 Prefixes per ASN: 9.04 Origin-only ASes present in the Internet Routing Table: 2390 Origin ASes announcing only one prefix: 1055 Transit ASes present in the Internet Routing Table: 385 Transit-only ASes present in the Internet Routing Table: 66 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 20 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 41464 Number of 32-bit ASNs visible in the Routing Table: 649 Prefixes from 32-bit ASNs in the Routing Table: 4468 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: 4 Number of addresses announced to Internet: 243139402 Equivalent to 14 /8s, 126 /16s and 3 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3351 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4729 Total APNIC prefixes after maximum aggregation: 2314 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4774 Unique aggregates announced from the APNIC address blocks: 2688 APNIC Region origin ASes present in the Internet Routing Table: 580 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 227 Number of APNIC addresses announced to Internet: 45838912 Equivalent to 2 /8s, 187 /16s and 114 /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: 14096 Total ARIN prefixes after maximum aggregation: 6318 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 13909 Unique aggregates announced from the ARIN address blocks: 7125 ARIN Region origin ASes present in the Internet Routing Table: 1226 ARIN Prefixes per ASN: 11.35 ARIN Region origin ASes announcing only one prefix: 423 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 188 Number of ARIN addresses announced to Internet: 132606657 Equivalent to 7 /8s, 231 /16s and 106 /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: 3627 Total RIPE prefixes after maximum aggregation: 2879 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3769 Unique aggregates announced from the RIPE address blocks: 3088 RIPE Region origin ASes present in the Internet Routing Table: 688 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 306 RIPE Region transit ASes present in the Internet Routing Table: 101 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 58014464 Equivalent to 3 /8s, 117 /16s and 59 /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: 1592 Total LACNIC prefixes after maximum aggregation: 679 LACNIC Deaggregation factor: 2.34 Prefixes being announced from the LACNIC address blocks: 1595 Unique aggregates announced from the LACNIC address blocks: 884 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 10.03 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.6 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: 4028745 Equivalent to 0 /8s, 61 /16s and 121 /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: 1036 Total AfriNIC prefixes after maximum aggregation: 205 AfriNIC Deaggregation factor: 5.05 Prefixes being announced from the AfriNIC address blocks: 1035 Unique aggregates announced from the AfriNIC address blocks: 290 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 20.29 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2649344 Equivalent to 0 /8s, 40 /16s and 109 /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 602 2157 464 SINET-AS Research Organization of Infor 7497 434 182 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 16509 1960 1634 779 AMAZON-02, US 15169 797 2254 63 GOOGLE, US 14618 756 3994 558 AMAZON-AES, US 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 2152 152 507 91 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, 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 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 113 533 105 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 73 449 73 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 259 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 116 0 86 Telconet S.A, EC 11340 114 25 50 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 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/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 380 319 72 TENET-1, ZA 36914 250 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 61 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 37182 33 8 1 TERNET, TZ 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 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 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 16509 1960 1634 779 AMAZON-02, US 15169 797 2254 63 GOOGLE, US 14618 756 3994 558 AMAZON-AES, US 2907 602 2157 464 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 1916 259 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 250 82 3 KENET-AS, KE 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 1960 1181 AMAZON-02, US 15169 797 734 GOOGLE, US 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 380 308 TENET-1, ZA 36914 250 247 KENET-AS, KE 1916 259 215 Rede Nacional de Ensino e Pesquisa, BR 14618 756 198 AMAZON-AES, US 5786 199 198 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 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 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 27750 Cooperacion Latino Americana de Redes Av 192.31.196.0/24 Origin: 112 UNASSIGNED 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 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 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 /12:20 /13:34 /14:81 /15:160 /16:2091 /17:486 /18:475 /19:715 /20:2781 /21:1016 /22:1629 /23:1706 /24:13436 /25:95 /26:71 /27:98 /28:27 /29:78 /30:39 /31:31 /32:10 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 284 1960 AMAZON-02, US 15169 272 797 GOOGLE, US 14618 247 756 AMAZON-AES, US 36914 237 250 KENET-AS, KE 396982 181 2621 GOOGLE-CLOUD-PLATFORM, US 8895 171 176 ISU Internet Services Unit ISU, SA 27947 93 116 Telconet S.A, EC 32440 80 106 LONI, US 23024 52 113 OCDE, US 1916 38 259 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 3:66 5:17 8:28 12:1 13:44 14:89 15:66 16:29 18:48 23:116 24:3 31:10 34:10 35:48 37:1 38:9 40:1 41:136 42:10 44:7 45:52 46:10 47:1 49:6 50:1 52:555 54:229 58:1 59:20 60:4 61:3 62:12 63:36 64:162 65:13 66:65 67:60 68:10 69:34 70:43 71:3 72:14 74:146 76:46 77:11 78:3 79:10 80:17 81:28 82:7 83:6 84:9 85:47 86:5 87:2 88:1 89:17 91:55 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:7 102:16 103:327 104:204 107:33 108:99 109:13 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:45 130:142 131:61 132:49 133:157 134:97 135:4 136:282 137:106 138:10 139:18 140:38 141:4 142:248 143:27 144:39 145:2 146:144 147:65 148:201 149:16 150:130 151:12 152:146 153:14 154:30 155:65 156:68 157:38 158:41 159:148 160:27 161:32 162:63 163:80 164:20 165:54 166:1 167:23 168:161 169:14 170:108 171:1 172:113 173:111 174:2 175:31 176:11 177:9 178:1 179:8 180:15 182:1 184:4 185:90 186:3 187:19 188:19 189:3 190:5 191:36 192:1463 193:353 194:129 195:88 196:168 197:156 198:493 199:297 200:264 201:36 202:638 203:433 204:363 205:153 206:201 207:180 208:127 209:159 210:186 211:17 212:171 213:15 216:161 217:12 218:22 219:6 220:16 222:5 223:4 End of report