IPv4 R&E Routing Table Report 20:15 GMT Wed 25 Jun, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 264354 Prefixes after maximum aggregation (per Origin AS): 116306 Deaggregation factor: 2.27 Unique aggregates announced (without unneeded subnets): 136306 Number of IPv4 prefixes with a valid ROA: 120069 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 144241 Total ASes present in the Internet Routing Table: 19704 Prefixes per ASN: 13.42 Origin-only ASes present in the Internet Routing Table: 17048 Origin ASes announcing only one prefix: 7726 Transit ASes present in the Internet Routing Table: 2656 Transit-only ASes present in the Internet Routing Table: 684 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 371 Number of instances of unregistered ASNs: 403 Number of 32-bit ASNs allocated by the RIRs: 46645 Number of 32-bit ASNs visible in the Routing Table: 7411 Prefixes from 32-bit ASNs in the Routing Table: 28869 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 109 Number of addresses announced to Internet: 1564957957 Equivalent to 93 /8s, 71 /16s and 93 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 83534 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33560 Total APNIC prefixes after maximum aggregation: 7609 APNIC Deaggregation factor: 4.41 Prefixes being announced from the APNIC address blocks: 32604 Unique aggregates announced from the APNIC address blocks: 7979 APNIC Region origin ASes present in the Internet Routing Table: 1285 APNIC Prefixes per ASN: 25.37 APNIC Region origin ASes announcing only one prefix: 507 APNIC Region transit ASes present in the Internet Routing Table: 199 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 601 Number of APNIC addresses announced to Internet: 174117228 Equivalent to 10 /8s, 96 /16s and 209 /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, 131072-155961 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: 125791 Total ARIN prefixes after maximum aggregation: 66285 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 123303 Unique aggregates announced from the ARIN address blocks: 66500 ARIN Region origin ASes present in the Internet Routing Table: 9319 ARIN Prefixes per ASN: 13.23 ARIN Region origin ASes announcing only one prefix: 3876 ARIN Region transit ASes present in the Internet Routing Table: 873 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2200 Number of ARIN addresses announced to Internet: 961515785 Equivalent to 57 /8s, 79 /16s and 145 /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 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 49773 Total RIPE prefixes after maximum aggregation: 26828 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51574 Unique aggregates announced from the RIPE address blocks: 37595 RIPE Region origin ASes present in the Internet Routing Table: 4637 RIPE Prefixes per ASN: 11.12 RIPE Region origin ASes announcing only one prefix: 1945 RIPE Region transit ASes present in the Internet Routing Table: 693 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916 Number of RIPE addresses announced to Internet: 286149200 Equivalent to 17 /8s, 14 /16s and 74 /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, 53/8, 57/8, 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: 44253 Total LACNIC prefixes after maximum aggregation: 13047 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 43414 Unique aggregates announced from the LACNIC address blocks: 19533 LACNIC Region origin ASes present in the Internet Routing Table: 3356 LACNIC Prefixes per ASN: 12.94 LACNIC Region origin ASes announcing only one prefix: 1284 LACNIC Region transit ASes present in the Internet Routing Table: 676 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2535 Number of LACNIC addresses announced to Internet: 96814656 Equivalent to 5 /8s, 197 /16s and 70 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 10606 Total AfriNIC prefixes after maximum aggregation: 2274 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 13350 Unique aggregates announced from the AfriNIC address blocks: 4591 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 45.56 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.3 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159 Number of AfriNIC addresses announced to Internet: 46313728 Equivalent to 2 /8s, 194 /16s and 177 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 11184 8761 110 CHINAMOBILE-CN China Mobile Communication 56046 2225 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1670 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2170 465 SINET-AS Research Organization of Informa 45102 530 856 135 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13583 40953 5215 AMAZON-02, US 22773 3347 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2811 214 1711 USDA-1, US 36352 2572 210 1134 AS-COLOCROSSING, US 367 2428 3162 1159 DNIC-ASBLK-00306-00371, US 6167 1914 3955 513 CELLCO-PART, US 7018 1885 22865 1411 ATT-INTERNET4, US 11776 1820 253 260 ATLANTICBB-JOHNSTOWN, US 209 1658 4889 270 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1197 93 972 AKAMAI-ASN1, NL 3257 1035 2082 804 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 34984 678 74 414 TELLCOM-AS, TR 212238 661 48 585 CDNEXT, GB 8376 573 53 24 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7155 1926 915 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1672 243 1210 Telmex Colombia S.A., CO 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1051 2487 55 TIM SA, BR 18881 877 1125 33 TELEFONICA BRASIL S.A, BR 11172 688 106 51 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 627 90 33 ENTEL CHILE S.A., CL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1451 389 16 LINKdotNET-AS, EG 24835 1061 475 106 RAYA-AS, EG 29571 1055 100 72 ORANGE-COTE-IVOIRE, CI 36935 617 520 50 Vodafone-, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 552 1192 125 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 37069 451 1046 15 MOBINIL, EG 2018 375 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13583 40953 5215 AMAZON-02, US 9808 11184 8761 110 CHINAMOBILE-CN China Mobile Communication 8151 7155 1926 915 UNINET, MX 22773 3347 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2811 214 1711 USDA-1, US 36352 2572 210 1134 AS-COLOCROSSING, US 367 2428 3162 1159 DNIC-ASBLK-00306-00371, US 56046 2225 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1987 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11184 11074 CHINAMOBILE-CN China Mobile Communications Grou 8151 7155 6240 UNINET, MX 22773 3347 3183 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2225 2037 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56041 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1820 1560 ATLANTICBB-JOHNSTOWN, US 36352 2572 1438 AS-COLOCROSSING, US 24863 1451 1435 LINKdotNET-AS, EG Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 41.77.208.0/22 Origin: 37475 RESERVED, ZZ 41.77.208.0/22 Transit: 15964 CAMNET-AS, CM 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:30 /11:42 /12:150 /13:212 /14:578 /15:1098 /16:7654 /17:3487 /18:4255 /19:7612 /20:12603 /21:15416 /22:27425 /23:27809 /24:155736 /25:63 /26:81 /27:34 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3875 7155 UNINET, MX 22773 2501 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13583 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1033 2572 AS-COLOCROSSING, US 19901 1010 1314 BRSPD-PUBLIC, US 10620 967 1672 Telmex Colombia S.A., CO 209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US 6167 844 1914 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:18 2:451 3:817 4:5 5:806 6:149 7:5 8:659 11:171 12:970 13:379 14:115 15:307 16:247 17:4 18:889 20:188 21:4 22:188 23:2626 24:711 27:22 29:19 31:533 32:9 33:1 34:10 35:180 36:1972 37:883 38:1958 39:550 40:68 41:975 42:21 43:226 44:34 45:3514 46:969 47:96 49:24 50:355 51:387 52:1387 54:317 55:1101 56:11 57:22 58:16 59:39 60:32 61:106 62:533 63:749 64:1978 65:1094 66:1529 67:1054 68:402 69:1161 70:466 71:193 72:662 74:929 75:319 76:239 77:495 78:400 79:252 80:291 81:401 82:709 83:206 84:338 85:437 86:244 87:210 88:303 89:717 90:104 91:941 92:645 93:490 94:926 95:674 96:288 97:59 98:533 99:174 100:42 101:23 102:346 103:1283 104:1682 105:213 106:41 107:1557 108:552 109:407 110:40 111:1921 112:539 113:36 114:47 115:32 116:56 117:1052 118:66 119:87 120:1375 121:48 122:79 123:126 124:62 125:27 128:480 129:397 130:676 131:952 132:561 133:213 134:466 135:127 136:604 137:509 138:830 139:426 140:715 141:362 142:1030 143:714 144:438 145:122 146:683 147:513 148:970 149:774 150:209 151:701 152:488 153:141 154:1064 155:865 156:966 157:379 158:577 159:745 160:833 161:638 162:1044 163:434 164:713 165:531 166:796 167:667 168:1136 169:160 170:1546 171:113 172:1352 173:818 174:361 175:81 176:779 177:801 178:497 179:682 180:40 181:1777 182:28 183:1027 184:457 185:3594 186:2037 187:1500 188:856 189:1858 190:4134 191:440 192:5212 193:1898 194:1236 195:933 196:709 197:1190 198:2740 199:4968 200:3712 201:3422 202:1019 203:871 204:2168 205:1755 206:1535 207:1571 208:1489 209:1950 210:335 211:446 212:1021 213:783 214:924 215:37 216:2553 217:436 218:546 219:19 220:41 221:402 222:24 223:934 End of report