IPv4 R&E Routing Table Report 22:10 GMT Wed 25 Oct, 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: 25172 Prefixes after maximum aggregation (per Origin AS): 12444 Deaggregation factor: 2.02 Unique aggregates announced (without unneeded subnets): 14040 Number of IPv4 prefixes with a valid ROA: 11576 Number of IPv4 prefixes with an invalid ROA: 208 Number of IPv4 prefixes with no ROA: 13388 Total ASes present in the Internet Routing Table: 2717 Prefixes per ASN: 9.26 Origin-only ASes present in the Internet Routing Table: 2333 Origin ASes announcing only one prefix: 1039 Transit ASes present in the Internet Routing Table: 384 Transit-only ASes present in the Internet Routing Table: 71 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: 16 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 42902 Number of 32-bit ASNs visible in the Routing Table: 618 Prefixes from 32-bit ASNs in the Routing Table: 4618 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: 9 Number of addresses announced to Internet: 242034896 Equivalent to 14 /8s, 109 /16s and 40 /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: 3341 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4603 Total APNIC prefixes after maximum aggregation: 2273 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4646 Unique aggregates announced from the APNIC address blocks: 2631 APNIC Region origin ASes present in the Internet Routing Table: 541 APNIC Prefixes per ASN: 8.59 APNIC Region origin ASes announcing only one prefix: 228 APNIC Region transit ASes present in the Internet Routing Table: 60 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: 203 Number of APNIC addresses announced to Internet: 45545536 Equivalent to 2 /8s, 182 /16s and 248 /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: 14436 Total ARIN prefixes after maximum aggregation: 6487 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14236 Unique aggregates announced from the ARIN address blocks: 7257 ARIN Region origin ASes present in the Internet Routing Table: 1234 ARIN Prefixes per ASN: 11.54 ARIN Region origin ASes announcing only one prefix: 435 ARIN Region transit ASes present in the Internet Routing Table: 163 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: 192 Number of ARIN addresses announced to Internet: 131740801 Equivalent to 7 /8s, 218 /16s and 52 /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: 3656 Total RIPE prefixes after maximum aggregation: 2900 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3803 Unique aggregates announced from the RIPE address blocks: 3123 RIPE Region origin ASes present in the Internet Routing Table: 691 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 305 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: 146 Number of RIPE addresses announced to Internet: 58046720 Equivalent to 3 /8s, 117 /16s and 185 /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: 1418 Total LACNIC prefixes after maximum aggregation: 615 LACNIC Deaggregation factor: 2.31 Prefixes being announced from the LACNIC address blocks: 1422 Unique aggregates announced from the LACNIC address blocks: 803 LACNIC Region origin ASes present in the Internet Routing Table: 133 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 50 LACNIC Region transit ASes present in the Internet Routing Table: 27 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: 56 Number of LACNIC addresses announced to Internet: 3975439 Equivalent to 0 /8s, 60 /16s and 169 /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: 1056 Total AfriNIC prefixes after maximum aggregation: 166 AfriNIC Deaggregation factor: 6.36 Prefixes being announced from the AfriNIC address blocks: 1056 Unique aggregates announced from the AfriNIC address blocks: 217 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 23.47 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 21 Number of AfriNIC addresses announced to Internet: 2658816 Equivalent to 0 /8s, 40 /16s and 146 /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 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 126 19 17 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 63 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 2703 3598 396 GOOGLE-CLOUD-PLATFORM, US 16509 2170 1639 876 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 820 4021 617 AMAZON-AES, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 144 507 92 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 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 160 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 457 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 249 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 107 25 51 Red Universitaria Nacional, CL 271640 70 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 43 99 33 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 4 3 Universidad Autonoma Metropolitana, MX 263683 35 10 23 Universidad de Costa Rica, CR 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 382 319 71 TENET-1, ZA 36914 244 82 3 KENET-AS, KE 327687 168 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 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/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2703 3598 396 GOOGLE-CLOUD-PLATFORM, US 16509 2170 1639 876 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 820 4021 617 AMAZON-AES, US 2907 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 249 176 43 Rede Nacional de Ensino e Pesquisa, BR 36914 244 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 2170 1294 AMAZON-02, US 15169 829 768 GOOGLE, US 7497 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 36914 244 241 KENET-AS, KE 1916 249 206 Rede Nacional de Ensino e Pesquisa, BR 14618 820 203 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 168 165 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 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 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 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 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 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /16:2093 /17:508 /18:482 /19:721 /20:2768 /21:1005 /22:1632 /23:1708 /24:13531 /25:89 /26:66 /27:75 /28:22 /29:87 /30:40 /31:34 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 298 2170 AMAZON-02, US 15169 275 829 GOOGLE, US 14618 263 820 AMAZON-AES, US 36914 233 244 KENET-AS, KE 396982 197 2703 GOOGLE-CLOUD-PLATFORM, US 8895 155 160 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 81 111 LONI, US 23024 52 113 OCDE, US 1916 40 249 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 3:78 5:20 8:28 12:1 13:45 14:88 15:70 16:112 18:66 23:109 24:3 31:9 34:21 35:49 38:9 40:5 41:113 42:10 43:1 44:9 45:59 46:12 47:1 49:9 50:3 52:558 54:228 58:1 59:19 60:5 61:3 62:12 63:35 64:165 65:12 66:71 67:61 68:13 69:34 70:44 71:3 72:13 74:142 76:47 77:11 78:3 79:10 80:13 81:27 82:7 83:6 84:10 85:46 86:4 87:2 88:1 89:18 91:58 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:28 103:295 104:217 107:33 108:104 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:27 122:8 123:8 124:40 125:4 128:88 129:52 130:141 131:63 132:64 133:152 134:108 135:3 136:293 137:145 138:10 139:17 140:38 141:5 142:278 143:22 144:39 145:3 146:136 147:65 148:201 149:17 150:44 151:16 152:134 153:14 154:29 155:73 156:67 157:23 158:18 159:148 160:30 161:30 162:85 163:84 164:23 165:51 166:1 167:23 168:144 169:12 170:73 171:1 172:114 173:116 174:2 175:18 176:11 177:5 178:1 179:8 180:15 182:1 184:3 185:104 186:3 187:18 188:19 189:3 190:4 191:13 192:1500 193:310 194:130 195:88 196:203 197:165 198:499 199:296 200:274 201:36 202:624 203:422 204:372 205:148 206:208 207:177 208:135 209:163 210:192 211:14 212:162 213:15 216:167 217:11 218:22 219:5 220:16 222:2 223:14 End of report