IPv4 R&E Routing Table Report 20:15 GMT Sat 07 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: 264167 Prefixes after maximum aggregation (per Origin AS): 115831 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135520 Number of IPv4 prefixes with a valid ROA: 118771 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 145352 Total ASes present in the Internet Routing Table: 19895 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 17178 Origin ASes announcing only one prefix: 7776 Transit ASes present in the Internet Routing Table: 2717 Transit-only ASes present in the Internet Routing Table: 710 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: 310 Number of instances of unregistered ASNs: 342 Number of 32-bit ASNs allocated by the RIRs: 46622 Number of 32-bit ASNs visible in the Routing Table: 7611 Prefixes from 32-bit ASNs in the Routing Table: 28580 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: 105 Number of addresses announced to Internet: 1558002653 Equivalent to 92 /8s, 221 /16s and 59 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83689 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31911 Total APNIC prefixes after maximum aggregation: 7125 APNIC Deaggregation factor: 4.48 Prefixes being announced from the APNIC address blocks: 30990 Unique aggregates announced from the APNIC address blocks: 7391 APNIC Region origin ASes present in the Internet Routing Table: 1176 APNIC Prefixes per ASN: 26.35 APNIC Region origin ASes announcing only one prefix: 455 APNIC Region transit ASes present in the Internet Routing Table: 191 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 547 Number of APNIC addresses announced to Internet: 166406252 Equivalent to 9 /8s, 235 /16s and 40 /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: 126039 Total ARIN prefixes after maximum aggregation: 65982 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123342 Unique aggregates announced from the ARIN address blocks: 66585 ARIN Region origin ASes present in the Internet Routing Table: 9358 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3907 ARIN Region transit ASes present in the Internet Routing Table: 869 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: 2197 Number of ARIN addresses announced to Internet: 961381857 Equivalent to 57 /8s, 77 /16s and 133 /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: 49733 Total RIPE prefixes after maximum aggregation: 26610 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51638 Unique aggregates announced from the RIPE address blocks: 37363 RIPE Region origin ASes present in the Internet Routing Table: 4624 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1934 RIPE Region transit ASes present in the Internet Routing Table: 693 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1910 Number of RIPE addresses announced to Internet: 286165072 Equivalent to 17 /8s, 14 /16s and 136 /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: 44995 Total LACNIC prefixes after maximum aggregation: 13524 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 44124 Unique aggregates announced from the LACNIC address blocks: 20211 LACNIC Region origin ASes present in the Internet Routing Table: 3617 LACNIC Prefixes per ASN: 12.20 LACNIC Region origin ASes announcing only one prefix: 1371 LACNIC Region transit ASes present in the Internet Routing Table: 756 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2802 Number of LACNIC addresses announced to Internet: 97194560 Equivalent to 5 /8s, 203 /16s and 18 /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: 11179 Total AfriNIC prefixes after maximum aggregation: 2384 AfriNIC Deaggregation factor: 4.69 Prefixes being announced from the AfriNIC address blocks: 13968 Unique aggregates announced from the AfriNIC address blocks: 3866 AfriNIC Region origin ASes present in the Internet Routing Table: 287 AfriNIC Prefixes per ASN: 48.67 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 155 Number of AfriNIC addresses announced to Internet: 46811648 Equivalent to 2 /8s, 202 /16s and 74 /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 10879 8756 96 CHINAMOBILE-CN China Mobile Communication 56046 2050 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1632 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 192 50 CMNET-HUNAN-AP China Mobile communication 24547 867 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 480 804 160 ALIBABA-CN-NET Alibaba US Technology Co., 17676 464 8751 151 GIGAINFRA SoftBank Corp., JP 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 13627 40954 5205 AMAZON-02, US 22773 3346 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2786 212 1705 USDA-1, US 36352 2557 210 1125 AS-COLOCROSSING, US 367 2440 2909 1172 DNIC-ASBLK-00306-00371, US 7018 2060 22881 1514 ATT-INTERNET4, US 11776 1900 259 214 ATLANTICBB-JOHNSTOWN, US 6167 1896 3905 505 CELLCO-PART, US 209 1660 4889 271 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 1153 90 941 AKAMAI-ASN1, NL 3257 1000 2081 782 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 817 1301 129 SAUDINETSTC-AS, SA 8452 791 1841 16 TE-AS TE-AS, EG 34984 671 73 406 TELLCOM-AS, TR 212238 627 45 553 CDNEXT, GB 203214 608 45 396 HULUMTELE, IQ 8376 574 53 21 Jordan Data Communications, JO 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 7410 2004 955 UNINET, MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 10620 1676 243 1214 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 1034 2503 52 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 627 90 33 ENTEL CHILE S.A., CL 26599 557 2884 69 TELEFONICA BRASIL S.A, BR 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 1463 389 16 LINKdotNET-AS, EG 29571 1153 100 74 ORANGE-COTE-IVOIRE, CI 24835 1053 535 35 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 577 122 154 Vodafone-, EG 36914 558 82 3 KENET-AS, KE 36903 480 223 338 MT-MPLS, MA 37069 469 1046 15 MOBINIL, EG 2018 374 318 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 13627 40954 5205 AMAZON-02, US 9808 10879 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7410 2004 955 UNINET, MX 22773 3346 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2786 212 1705 USDA-1, US 36352 2557 210 1125 AS-COLOCROSSING, US 367 2440 2909 1172 DNIC-ASBLK-00306-00371, US 7018 2060 22881 1514 ATT-INTERNET4, US 56046 2050 811 188 CMNET-JIANGSU-AP China Mobile communicati 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 10879 10783 CHINAMOBILE-CN China Mobile Communications Grou 8151 7410 6455 UNINET, MX 22773 3346 3180 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1991 1927 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 2050 1862 CMNET-JIANGSU-AP China Mobile communications co 11776 1900 1686 ATLANTICBB-JOHNSTOWN, US 56041 1632 1542 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1463 1447 LINKdotNET-AS, EG 56047 1484 1434 CMNET-HUNAN-AP China Mobile communications corp 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 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 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 /11:41 /12:150 /13:210 /14:573 /15:1102 /16:7636 /17:3433 /18:4214 /19:7598 /20:12457 /21:15234 /22:27471 /23:27982 /24:155791 /25:62 /26:81 /27:34 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3991 7410 UNINET, MX 22773 2498 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2382 13627 AMAZON-02, US 11830 1694 1991 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1035 2557 AS-COLOCROSSING, US 19901 979 1273 BRSPD-PUBLIC, US 10620 971 1676 Telmex Colombia S.A., CO 209 964 1660 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:461 3:803 4:5 5:795 6:155 7:5 8:669 11:171 12:993 13:382 14:115 15:306 16:247 17:6 18:888 20:187 21:4 22:188 23:2603 24:642 27:22 29:19 31:532 32:9 33:1 34:10 35:181 36:1864 37:1022 38:1956 39:552 40:63 41:989 42:21 43:213 44:34 45:3596 46:985 47:81 49:19 50:348 51:387 52:1399 54:317 55:1084 56:11 57:19 58:16 59:30 60:16 61:75 62:544 63:749 64:1976 65:1089 66:1531 67:995 68:402 69:1130 70:476 71:198 72:719 74:942 75:320 76:248 77:486 78:360 79:289 80:299 81:371 82:738 83:233 84:339 85:439 86:245 87:209 88:296 89:821 90:104 91:941 92:636 93:490 94:916 95:658 96:289 97:53 98:458 99:190 100:36 101:17 102:340 103:1205 104:1664 105:207 106:3 107:1555 108:555 109:401 110:35 111:1922 112:521 113:39 114:40 115:24 116:57 117:1041 118:58 119:85 120:1272 121:43 122:67 123:76 124:61 125:25 128:496 129:398 130:683 131:937 132:570 133:211 134:494 135:112 136:598 137:504 138:899 139:438 140:703 141:462 142:1033 143:693 144:428 145:147 146:684 147:517 148:899 149:794 150:355 151:639 152:481 153:130 154:1184 155:862 156:1075 157:365 158:552 159:726 160:872 161:624 162:988 163:482 164:718 165:779 166:770 167:653 168:1144 169:159 170:1589 171:126 172:1379 173:808 174:284 175:62 176:781 177:880 178:517 179:693 180:41 181:1777 182:27 183:966 184:452 185:3535 186:2072 187:1519 188:839 189:1821 190:4127 191:464 192:5199 193:1893 194:1247 195:934 196:687 197:1603 198:2746 199:4944 200:3624 201:3331 202:955 203:710 204:2165 205:1953 206:1519 207:1526 208:1448 209:1890 210:294 211:424 212:1029 213:772 214:983 215:42 216:2550 217:423 218:527 219:18 220:28 221:378 222:24 223:865 End of report