IPv4 R&E Routing Table Report 20:15 GMT Fri 29 Aug, 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: 280703 Prefixes after maximum aggregation (per Origin AS): 120422 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143323 Number of IPv4 prefixes with a valid ROA: 132144 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148516 Total ASes present in the Internet Routing Table: 20832 Prefixes per ASN: 13.47 Origin-only ASes present in the Internet Routing Table: 17925 Origin ASes announcing only one prefix: 7979 Transit ASes present in the Internet Routing Table: 2907 Transit-only ASes present in the Internet Routing Table: 717 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 346 Number of instances of unregistered ASNs: 375 Number of 32-bit ASNs allocated by the RIRs: 47284 Number of 32-bit ASNs visible in the Routing Table: 8354 Prefixes from 32-bit ASNs in the Routing Table: 34292 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 102 Number of addresses announced to Internet: 1628593413 Equivalent to 97 /8s, 18 /16s and 93 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 89586 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35976 Total APNIC prefixes after maximum aggregation: 7374 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 34929 Unique aggregates announced from the APNIC address blocks: 7442 APNIC Region origin ASes present in the Internet Routing Table: 1193 APNIC Prefixes per ASN: 29.28 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 556 Number of APNIC addresses announced to Internet: 163360364 Equivalent to 9 /8s, 188 /16s and 174 /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: 126681 Total ARIN prefixes after maximum aggregation: 66618 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125174 Unique aggregates announced from the ARIN address blocks: 68512 ARIN Region origin ASes present in the Internet Routing Table: 9233 ARIN Prefixes per ASN: 13.56 ARIN Region origin ASes announcing only one prefix: 3836 ARIN Region transit ASes present in the Internet Routing Table: 865 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: 2177 Number of ARIN addresses announced to Internet: 1023764233 Equivalent to 61 /8s, 5 /16s and 103 /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: 49503 Total RIPE prefixes after maximum aggregation: 26940 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51656 Unique aggregates announced from the RIPE address blocks: 37977 RIPE Region origin ASes present in the Internet Routing Table: 4720 RIPE Prefixes per ASN: 10.94 RIPE Region origin ASes announcing only one prefix: 1982 RIPE Region transit ASes present in the Internet Routing Table: 723 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1980 Number of RIPE addresses announced to Internet: 284076368 Equivalent to 16 /8s, 238 /16s and 169 /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: 56996 Total LACNIC prefixes after maximum aggregation: 16793 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55130 Unique aggregates announced from the LACNIC address blocks: 25084 LACNIC Region origin ASes present in the Internet Routing Table: 4530 LACNIC Prefixes per ASN: 12.17 LACNIC Region origin ASes announcing only one prefix: 1592 LACNIC Region transit ASes present in the Internet Routing Table: 914 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3486 Number of LACNIC addresses announced to Internet: 108504128 Equivalent to 6 /8s, 119 /16s and 164 /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: 11201 Total AfriNIC prefixes after maximum aggregation: 2435 AfriNIC Deaggregation factor: 4.60 Prefixes being announced from the AfriNIC address blocks: 13712 Unique aggregates announced from the AfriNIC address blocks: 4211 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 45.71 AfriNIC Region origin ASes announcing only one prefix: 100 AfriNIC Region transit ASes present in the Internet Routing Table: 81 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 155 Number of AfriNIC addresses announced to Internet: 48775680 Equivalent to 2 /8s, 232 /16s and 66 /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 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 607 2168 461 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14068 40856 5399 AMAZON-02, US 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2961 231 1744 USDA-1, US 36352 2526 207 1169 AS-COLOCROSSING, US 367 2380 2736 1108 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 7018 1466 22777 1103 ATT-INTERNET4, 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 1196 93 977 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 682 50 608 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 596 53 26 Jordan Data Communications, JO 8452 578 1841 16 TE-AS TE-AS, EG 51167 567 113 248 CONTABO, DE 35819 520 516 55 MOBILY-AS Etihad Etisalat Company Mobily, 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 7203 1952 784 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1180 371 22 Telefonica del Peru S.A.A., PE 26615 1003 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 791 278 29 Techtel LMDS Comunicaciones Interactivas 22884 691 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 27651 651 92 45 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 24835 1293 572 23 RAYA-AS, EG 29571 1151 93 59 ORANGE-COTE-IVOIRE, CI 24863 964 389 23 LINKdotNET-AS, EG 37069 676 1096 13 MOBINIL, EG 36935 600 519 31 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 573 82 3 KENET-AS, KE 36903 548 242 359 MT-MPLS, MA 36992 435 1028 217 ETISALAT-MISR, 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 14068 40856 5399 AMAZON-02, US 9808 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7203 1952 784 UNINET, MX 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2961 231 1744 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2526 207 1169 AS-COLOCROSSING, US 367 2380 2736 1108 DNIC-ASBLK-00306-00371, US 11830 1988 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 12726 12612 CHINAMOBILE-CN China Mobile Communications Grou 8151 7203 6419 UNINET, MX 22773 3347 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, US 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.57.124.0/24 Origin: 37442 RESERVED, ZZ 41.57.124.0/24 Transit: 37204 TELONE, ZW 41.57.127.0/24 Origin: 37442 RESERVED, ZZ 41.57.127.0/24 Transit: 37204 TELONE, ZW 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 /8:14 /9:11 /10:30 /11:52 /12:158 /13:223 /14:590 /15:1115 /16:7653 /17:3471 /18:4105 /19:7552 /20:13014 /21:15841 /22:28431 /23:29537 /24:168663 /25:67 /26:83 /27:52 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3880 7203 UNINET, MX 22773 2501 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2388 14068 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1392 BRIGHTSPEED, US 36352 1004 2526 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:45 2:462 3:911 4:5 5:867 6:143 7:5 8:647 9:3 11:171 12:885 13:444 14:120 15:332 16:247 17:3 18:895 20:192 21:4 22:188 23:2680 24:670 27:26 29:19 31:500 32:12 34:10 35:174 36:3082 37:857 38:2619 39:635 40:93 41:1133 42:281 43:205 44:31 45:4315 46:1051 47:114 49:31 50:479 51:383 52:1405 54:355 55:1110 56:11 57:23 58:44 59:34 60:31 61:53 62:531 63:780 64:1946 65:1094 66:1571 67:1079 68:366 69:1231 70:446 71:183 72:690 74:961 75:322 76:249 77:430 78:366 79:245 80:321 81:402 82:716 83:207 84:319 85:454 86:264 87:237 88:303 89:713 90:109 91:957 92:697 93:453 94:936 95:671 96:259 97:54 98:491 99:217 100:40 101:21 102:432 103:1227 104:1676 105:212 106:54 107:1551 108:534 109:394 110:52 111:2251 112:875 113:39 114:56 115:18 116:50 117:1217 118:68 119:66 120:1504 121:45 122:61 123:130 124:65 125:25 126:1 128:540 129:396 130:655 131:1099 132:562 133:221 134:509 135:120 136:680 137:518 138:1043 139:449 140:692 141:379 142:987 143:856 144:411 145:153 146:652 147:490 148:1004 149:774 150:196 151:843 152:628 153:180 154:929 155:948 156:869 157:434 158:668 159:733 160:910 161:675 162:1016 163:455 164:781 165:684 166:818 167:707 168:1541 169:162 170:1854 171:101 172:1311 173:815 174:366 175:86 176:507 177:1017 178:608 179:921 180:43 181:2349 182:25 183:1163 184:450 185:3560 186:3110 187:1761 188:813 189:1932 190:6092 191:547 192:5259 193:1843 194:1208 195:978 196:930 197:1148 198:2732 199:5171 200:4514 201:3660 202:981 203:708 204:2210 205:1833 206:1585 207:1610 208:1568 209:1995 210:352 211:477 212:926 213:766 214:958 215:39 216:2584 217:472 218:596 219:19 220:32 221:452 222:24 223:1266 End of report