IPv4 R&E Routing Table Report 20:15 GMT Thu 24 Jul, 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: 281309 Prefixes after maximum aggregation (per Origin AS): 121161 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143813 Number of IPv4 prefixes with a valid ROA: 131247 Number of IPv4 prefixes with an invalid ROA: 213 Number of IPv4 prefixes with no ROA: 149849 Total ASes present in the Internet Routing Table: 20968 Prefixes per ASN: 13.42 Origin-only ASes present in the Internet Routing Table: 18057 Origin ASes announcing only one prefix: 8099 Transit ASes present in the Internet Routing Table: 2911 Transit-only ASes present in the Internet Routing Table: 723 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: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 351 Number of instances of unregistered ASNs: 383 Number of 32-bit ASNs allocated by the RIRs: 46895 Number of 32-bit ASNs visible in the Routing Table: 8385 Prefixes from 32-bit ASNs in the Routing Table: 33463 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: 107 Number of addresses announced to Internet: 1651064581 Equivalent to 98 /8s, 105 /16s and 63 /24s Percentage of available address space announced: 44.6 Percentage of allocated address space announced: 44.6 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: 89905 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35178 Total APNIC prefixes after maximum aggregation: 7683 APNIC Deaggregation factor: 4.58 Prefixes being announced from the APNIC address blocks: 34164 Unique aggregates announced from the APNIC address blocks: 8085 APNIC Region origin ASes present in the Internet Routing Table: 1240 APNIC Prefixes per ASN: 27.55 APNIC Region origin ASes announcing only one prefix: 497 APNIC Region transit ASes present in the Internet Routing Table: 194 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 577 Number of APNIC addresses announced to Internet: 173364588 Equivalent to 10 /8s, 85 /16s and 85 /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: 126646 Total ARIN prefixes after maximum aggregation: 66703 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125227 Unique aggregates announced from the ARIN address blocks: 68243 ARIN Region origin ASes present in the Internet Routing Table: 9367 ARIN Prefixes per ASN: 13.37 ARIN Region origin ASes announcing only one prefix: 3900 ARIN Region transit ASes present in the Internet Routing Table: 885 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: 2206 Number of ARIN addresses announced to Internet: 1029652233 Equivalent to 61 /8s, 95 /16s and 63 /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: 51510 Total RIPE prefixes after maximum aggregation: 27627 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52873 Unique aggregates announced from the RIPE address blocks: 38527 RIPE Region origin ASes present in the Internet Routing Table: 4674 RIPE Prefixes per ASN: 11.31 RIPE Region origin ASes announcing only one prefix: 1962 RIPE Region transit ASes present in the Internet Routing Table: 706 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1927 Number of RIPE addresses announced to Internet: 292447568 Equivalent to 17 /8s, 110 /16s and 101 /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: 56521 Total LACNIC prefixes after maximum aggregation: 16578 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54784 Unique aggregates announced from the LACNIC address blocks: 24522 LACNIC Region origin ASes present in the Internet Routing Table: 4539 LACNIC Prefixes per ASN: 12.07 LACNIC Region origin ASes announcing only one prefix: 1629 LACNIC Region transit ASes present in the Internet Routing Table: 913 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: 3522 Number of LACNIC addresses announced to Internet: 109605440 Equivalent to 6 /8s, 136 /16s and 114 /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: 11103 Total AfriNIC prefixes after maximum aggregation: 2306 AfriNIC Deaggregation factor: 4.81 Prefixes being announced from the AfriNIC address blocks: 14154 Unique aggregates announced from the AfriNIC address blocks: 4333 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 48.81 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 153 Number of AfriNIC addresses announced to Internet: 45868032 Equivalent to 2 /8s, 187 /16s and 228 /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 11850 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1641 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 468 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 13688 40976 5290 AMAZON-02, US 22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2845 216 1733 USDA-1, US 36352 2554 209 1144 AS-COLOCROSSING, US 367 2487 3043 1169 DNIC-ASBLK-00306-00371, US 6167 1934 4020 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1656 22847 1245 ATT-INTERNET4, US 209 1654 4889 267 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 1169 91 952 AKAMAI-ASN1, NL 3257 1050 2083 814 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 838 1841 16 TE-AS TE-AS, EG 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 570 52 24 Jordan Data Communications, JO 51167 564 113 248 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 7404 1992 896 UNINET, MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 10620 1691 242 1219 Telmex Colombia S.A., CO 3816 1348 787 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11172 727 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1432 572 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 24863 1047 388 19 LINKdotNET-AS, EG 37069 953 1112 11 MOBINIL, EG 36914 582 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 549 518 29 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 36992 395 954 202 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 13688 40976 5290 AMAZON-02, US 9808 11850 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7404 1992 896 UNINET, MX 22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2845 216 1733 USDA-1, US 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2554 209 1144 AS-COLOCROSSING, US 367 2487 3043 1169 DNIC-ASBLK-00306-00371, US 11830 1984 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 11850 11735 CHINAMOBILE-CN China Mobile Communications Grou 8151 7404 6508 UNINET, MX 22773 3336 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2755 2566 CMNET-JIANGSU-AP China Mobile communications co 11830 1984 1920 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 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 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 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /10:31 /11:51 /12:161 /13:216 /14:595 /15:1118 /16:7811 /17:3516 /18:4247 /19:7817 /20:13340 /21:15951 /22:28930 /23:29449 /24:167817 /25:65 /26:81 /27:40 /28:18 /29:14 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3983 7404 UNINET, MX 22773 2492 3336 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13688 AMAZON-02, US 11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1025 1350 BRSPD-PUBLIC, US 36352 1016 2554 AS-COLOCROSSING, US 10620 996 1691 Telmex Colombia S.A., CO 209 962 1654 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) ---------------------------------------------- 1:36 2:440 3:854 4:5 5:811 6:145 7:5 8:658 11:171 12:968 13:406 14:137 15:308 16:247 17:3 18:890 20:189 21:4 22:188 23:2678 24:685 27:37 29:19 31:522 32:18 33:1 34:10 35:175 36:2616 37:748 38:2660 39:585 40:84 41:1086 42:21 43:225 44:33 45:4278 46:1018 47:110 49:26 50:481 51:387 52:1379 54:317 55:1111 56:11 57:22 58:18 59:34 60:29 61:61 62:551 63:784 64:1950 65:1136 66:1611 67:1090 68:371 69:1263 70:458 71:190 72:712 74:967 75:319 76:240 77:452 78:367 79:240 80:308 81:398 82:739 83:304 84:341 85:500 86:243 87:236 88:307 89:697 90:114 91:997 92:698 93:486 94:1027 95:754 96:275 97:53 98:498 99:192 100:40 101:61 102:393 103:1297 104:1699 105:176 106:40 107:1541 108:520 109:457 110:46 111:2005 112:688 113:38 114:63 115:23 116:56 117:1139 118:78 119:82 120:1457 121:51 122:70 123:130 124:64 125:25 126:1 128:524 129:399 130:683 131:1022 132:560 133:212 134:496 135:127 136:681 137:574 138:1030 139:444 140:768 141:371 142:1050 143:816 144:436 145:122 146:683 147:507 148:1008 149:737 150:204 151:806 152:608 153:131 154:1182 155:902 156:948 157:408 158:574 159:766 160:860 161:683 162:1066 163:444 164:732 165:582 166:812 167:711 168:1529 169:164 170:1768 171:105 172:1347 173:842 174:359 175:83 176:838 177:1079 178:608 179:879 180:45 181:2282 182:47 183:1091 184:460 185:3481 186:2869 187:1647 188:838 189:1994 190:5953 191:553 192:5299 193:1884 194:1233 195:959 196:720 197:1186 198:2755 199:5071 200:4667 201:3848 202:1079 203:730 204:2300 205:1835 206:1593 207:1632 208:1533 209:2022 210:363 211:467 212:1017 213:796 214:937 215:37 216:2602 217:437 218:558 219:18 220:32 221:461 222:24 223:1134 End of report