IPv4 R&E Routing Table Report 20:15 GMT Sat 05 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: 280020 Prefixes after maximum aggregation (per Origin AS): 120908 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143719 Number of IPv4 prefixes with a valid ROA: 130769 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 149207 Total ASes present in the Internet Routing Table: 21017 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 18097 Origin ASes announcing only one prefix: 8091 Transit ASes present in the Internet Routing Table: 2920 Transit-only ASes present in the Internet Routing Table: 731 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: 370 Number of instances of unregistered ASNs: 402 Number of 32-bit ASNs allocated by the RIRs: 46774 Number of 32-bit ASNs visible in the Routing Table: 8455 Prefixes from 32-bit ASNs in the Routing Table: 33844 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: 110 Number of addresses announced to Internet: 1638846149 Equivalent to 97 /8s, 174 /16s and 206 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 90161 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33516 Total APNIC prefixes after maximum aggregation: 7371 APNIC Deaggregation factor: 4.55 Prefixes being announced from the APNIC address blocks: 32284 Unique aggregates announced from the APNIC address blocks: 7634 APNIC Region origin ASes present in the Internet Routing Table: 1238 APNIC Prefixes per ASN: 26.08 APNIC Region origin ASes announcing only one prefix: 493 APNIC Region transit ASes present in the Internet Routing Table: 198 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 594 Number of APNIC addresses announced to Internet: 165027692 Equivalent to 9 /8s, 214 /16s and 31 /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: 126591 Total ARIN prefixes after maximum aggregation: 66483 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124923 Unique aggregates announced from the ARIN address blocks: 67761 ARIN Region origin ASes present in the Internet Routing Table: 9322 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3864 ARIN Region transit ASes present in the Internet Routing Table: 882 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: 2191 Number of ARIN addresses announced to Internet: 1029198601 Equivalent to 61 /8s, 88 /16s and 83 /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: 51191 Total RIPE prefixes after maximum aggregation: 27706 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52567 Unique aggregates announced from the RIPE address blocks: 38373 RIPE Region origin ASes present in the Internet Routing Table: 4699 RIPE Prefixes per ASN: 11.19 RIPE Region origin ASes announcing only one prefix: 1984 RIPE Region transit ASes present in the Internet Routing Table: 703 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: 1939 Number of RIPE addresses announced to Internet: 288158800 Equivalent to 17 /8s, 44 /16s and 244 /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: 57353 Total LACNIC prefixes after maximum aggregation: 16774 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 55613 Unique aggregates announced from the LACNIC address blocks: 25210 LACNIC Region origin ASes present in the Internet Routing Table: 4615 LACNIC Prefixes per ASN: 12.05 LACNIC Region origin ASes announcing only one prefix: 1641 LACNIC Region transit ASes present in the Internet Routing Table: 916 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: 3581 Number of LACNIC addresses announced to Internet: 109657088 Equivalent to 6 /8s, 137 /16s and 60 /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: 10999 Total AfriNIC prefixes after maximum aggregation: 2316 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 14523 Unique aggregates announced from the AfriNIC address blocks: 4632 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 50.78 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 150 Number of AfriNIC addresses announced to Internet: 46689792 Equivalent to 2 /8s, 200 /16s and 110 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 518 33 146 LCS-AS-AP LARUS Limited, HK 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 13573 40950 5229 AMAZON-02, US 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2836 215 1724 USDA-1, US 36352 2560 210 1138 AS-COLOCROSSING, US 367 2454 3163 1160 DNIC-ASBLK-00306-00371, US 6167 1909 3939 521 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1778 22857 1326 ATT-INTERNET4, US 209 1657 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 1186 92 963 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 8452 819 1841 16 TE-AS TE-AS, EG 25019 812 1301 129 SAUDINETSTC-AS, SA 34984 758 86 484 TELLCOM-AS, TR 212238 663 47 587 CDNEXT, GB 51167 568 113 251 CONTABO, DE 8376 567 53 20 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 7487 2020 910 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1711 248 1231 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1021 2487 55 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 11172 723 124 70 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 646 91 44 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 1564 389 16 LINKdotNET-AS, EG 24835 1088 569 38 RAYA-AS, EG 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 36935 711 519 39 Vodafone-, EG 36992 611 1189 224 ETISALAT-MISR, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 37069 559 1094 15 MOBINIL, EG 36903 456 204 330 MT-MPLS, MA 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 13573 40950 5229 AMAZON-02, US 9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7487 2020 910 UNINET, MX 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2836 215 1724 USDA-1, US 36352 2560 210 1138 AS-COLOCROSSING, US 367 2454 3163 1160 DNIC-ASBLK-00306-00371, US 56046 2366 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou 8151 7487 6577 UNINET, MX 22773 3335 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2366 2178 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 24863 1564 1548 LINKdotNET-AS, EG 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1482 1432 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 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 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.67.252.0/23 Origin: 15964 CAMNET-AS, CM 41.67.252.0/23 Transit: 37662 WIOCC-AS, MU 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 /8:14 /9:11 /10:31 /11:51 /12:158 /13:220 /14:590 /15:1116 /16:7629 /17:3511 /18:4303 /19:7830 /20:13019 /21:16093 /22:29007 /23:29554 /24:166659 /25:63 /26:80 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4004 7487 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13573 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2560 AS-COLOCROSSING, US 19901 1015 1319 BRSPD-PUBLIC, US 10620 993 1711 Telmex Colombia S.A., CO 209 962 1657 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) ---------------------------------------------- 1:21 2:456 3:820 4:5 5:805 6:149 7:5 8:653 11:171 12:975 13:394 14:113 15:307 16:247 17:4 18:886 20:188 21:4 22:188 23:2646 24:684 27:26 29:19 31:533 32:18 33:1 34:10 35:179 36:2071 37:790 38:2579 39:552 40:78 41:1039 42:21 43:228 44:30 45:4508 46:1024 47:98 49:21 50:365 51:387 52:1383 54:314 55:1103 56:11 57:23 58:16 59:37 60:31 61:77 62:565 63:786 64:1922 65:1150 66:1597 67:1098 68:372 69:1256 70:449 71:190 72:719 74:962 75:320 76:259 77:498 78:370 79:255 80:301 81:376 82:734 83:220 84:368 85:488 86:245 87:218 88:304 89:725 90:106 91:966 92:658 93:499 94:983 95:675 96:289 97:59 98:503 99:189 100:42 101:16 102:384 103:1295 104:1682 105:214 106:40 107:1547 108:540 109:449 110:40 111:1931 112:574 113:36 114:52 115:30 116:57 117:1081 118:60 119:82 120:1399 121:49 122:80 123:128 124:69 125:25 128:516 129:392 130:668 131:1055 132:572 133:212 134:469 135:127 136:630 137:529 138:1017 139:439 140:725 141:365 142:1022 143:788 144:424 145:123 146:688 147:522 148:1011 149:761 150:181 151:787 152:614 153:144 154:1467 155:860 156:1170 157:401 158:552 159:744 160:825 161:660 162:1075 163:443 164:723 165:570 166:818 167:699 168:1553 169:158 170:1787 171:110 172:1351 173:814 174:362 175:86 176:806 177:1142 178:616 179:897 180:41 181:2259 182:28 183:1033 184:462 185:3599 186:2817 187:1750 188:849 189:2021 190:6063 191:532 192:5273 193:1914 194:1278 195:955 196:749 197:1187 198:2742 199:5001 200:4712 201:3816 202:973 203:743 204:2223 205:1841 206:1581 207:1628 208:1584 209:2031 210:351 211:447 212:1030 213:799 214:920 215:35 216:2585 217:453 218:548 219:19 220:34 221:415 222:24 223:975 End of report