IPv4 R&E Routing Table Report 20:15 GMT Fri 04 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: 281182 Prefixes after maximum aggregation (per Origin AS): 121011 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143814 Number of IPv4 prefixes with a valid ROA: 131685 Number of IPv4 prefixes with an invalid ROA: 45 Number of IPv4 prefixes with no ROA: 149452 Total ASes present in the Internet Routing Table: 20998 Prefixes per ASN: 13.39 Origin-only ASes present in the Internet Routing Table: 18074 Origin ASes announcing only one prefix: 8097 Transit ASes present in the Internet Routing Table: 2924 Transit-only ASes present in the Internet Routing Table: 734 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: 373 Number of instances of unregistered ASNs: 405 Number of 32-bit ASNs allocated by the RIRs: 46755 Number of 32-bit ASNs visible in the Routing Table: 8420 Prefixes from 32-bit ASNs in the Routing Table: 33654 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: 1640131525 Equivalent to 97 /8s, 194 /16s and 107 /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: 91060 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33540 Total APNIC prefixes after maximum aggregation: 7405 APNIC Deaggregation factor: 4.53 Prefixes being announced from the APNIC address blocks: 32311 Unique aggregates announced from the APNIC address blocks: 7665 APNIC Region origin ASes present in the Internet Routing Table: 1245 APNIC Prefixes per ASN: 25.95 APNIC Region origin ASes announcing only one prefix: 498 APNIC Region transit ASes present in the Internet Routing Table: 205 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: 599 Number of APNIC addresses announced to Internet: 165126508 Equivalent to 9 /8s, 215 /16s and 161 /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: 126633 Total ARIN prefixes after maximum aggregation: 66499 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124965 Unique aggregates announced from the ARIN address blocks: 67768 ARIN Region origin ASes present in the Internet Routing Table: 9323 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3871 ARIN Region transit ASes present in the Internet Routing Table: 884 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: 2187 Number of ARIN addresses announced to Internet: 1029195529 Equivalent to 61 /8s, 88 /16s and 71 /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: 52531 Total RIPE prefixes after maximum aggregation: 27743 RIPE Deaggregation factor: 1.89 Prefixes being announced from the RIPE address blocks: 53891 Unique aggregates announced from the RIPE address blocks: 38391 RIPE Region origin ASes present in the Internet Routing Table: 4693 RIPE Prefixes per ASN: 11.48 RIPE Region origin ASes announcing only one prefix: 1980 RIPE Region transit ASes present in the Internet Routing Table: 704 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: 1934 Number of RIPE addresses announced to Internet: 288193616 Equivalent to 17 /8s, 45 /16s and 124 /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: 56683 Total LACNIC prefixes after maximum aggregation: 16588 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54974 Unique aggregates announced from the LACNIC address blocks: 24755 LACNIC Region origin ASes present in the Internet Routing Table: 4586 LACNIC Prefixes per ASN: 11.99 LACNIC Region origin ASes announcing only one prefix: 1637 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: 3549 Number of LACNIC addresses announced to Internet: 109406720 Equivalent to 6 /8s, 133 /16s and 106 /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: 11422 Total AfriNIC prefixes after maximum aggregation: 2517 AfriNIC Deaggregation factor: 4.54 Prefixes being announced from the AfriNIC address blocks: 14931 Unique aggregates announced from the AfriNIC address blocks: 5126 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 51.49 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: 6.6 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 48094976 Equivalent to 2 /8s, 221 /16s and 223 /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 537 887 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 515 33 145 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 13581 40948 5220 AMAZON-02, US 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2840 215 1730 USDA-1, US 36352 2560 210 1138 AS-COLOCROSSING, US 367 2454 3164 1159 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 3339 206 65 ALJAWWALSTC-AS, SA 20940 1187 92 964 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 8452 831 1852 14 TE-AS TE-AS, EG 34984 753 86 476 TELLCOM-AS, TR 212238 664 47 588 CDNEXT, GB 25019 652 1303 131 SAUDINETSTC-AS, SA 51167 568 113 251 CONTABO, DE 8376 554 52 23 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 7404 2004 910 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 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 1020 2487 55 TIM SA, BR 18881 883 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 29571 1157 100 63 ORANGE-COTE-IVOIRE, CI 24835 1028 573 102 RAYA-AS, EG 36992 817 1332 233 ETISALAT-MISR, EG 36935 768 518 45 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 37069 559 1094 15 MOBINIL, EG 36914 482 82 3 KENET-AS, KE 36903 456 204 330 MT-MPLS, MA 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 13581 40948 5220 AMAZON-02, US 9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7404 2004 910 UNINET, MX 39891 3339 206 65 ALJAWWALSTC-AS, SA 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2840 215 1730 USDA-1, US 36352 2560 210 1138 AS-COLOCROSSING, US 367 2454 3164 1159 DNIC-ASBLK-00306-00371, US 56046 2366 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou 8151 7404 6494 UNINET, MX 39891 3339 3274 ALJAWWALSTC-AS, SA 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 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 /13:221 /14:591 /15:1111 /16:7624 /17:3524 /18:4319 /19:7923 /20:13105 /21:16105 /22:29031 /23:29712 /24:167427 /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 3955 7404 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2384 3339 ALJAWWALSTC-AS, SA 16509 2344 13581 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 36352 1025 2560 AS-COLOCROSSING, US 19901 1015 1319 BRSPD-PUBLIC, US 10620 994 1712 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 3:827 4:5 5:1059 6:149 7:5 8:653 11:171 12:975 13:391 14:113 15:306 16:247 17:4 18:885 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 37:803 38:2589 39:552 40:78 41:1042 42:21 43:230 44:30 45:4499 46:1020 47:98 49:21 50:364 51:384 52:1383 54:315 55:1103 56:11 57:23 58:16 59:38 60:31 61:77 62:572 63:785 64:1919 65:1150 66:1598 67:1098 68:372 69:1254 70:449 71:190 72:719 74:960 75:320 76:259 77:506 78:626 79:253 80:302 81:378 82:731 83:223 84:381 85:488 86:243 87:218 88:304 89:727 90:106 91:969 92:660 93:882 94:903 95:802 96:289 97:59 98:503 99:189 100:42 101:16 102:382 103:1299 104:1681 105:232 106:40 107:1548 108:539 109:455 110:40 111:1931 112:574 113:36 114:52 115:27 116:57 117:1081 118:60 119:82 120:1399 121:49 122:79 123:128 124:68 125:25 128:512 129:392 130:668 131:1058 132:566 133:212 134:469 135:127 136:630 137:529 138:1022 139:439 140:725 141:365 142:1022 143:798 144:423 145:93 146:690 147:522 148:989 149:768 150:184 151:848 152:615 153:144 154:1492 155:860 156:1165 157:401 158:552 159:744 160:880 161:660 162:1073 163:445 164:725 165:571 166:815 167:700 168:1551 169:157 170:1775 171:110 172:1350 173:816 174:363 175:86 176:823 177:1109 178:632 179:875 180:43 181:2263 182:28 183:1033 184:462 185:3602 186:2766 187:1674 188:851 189:1988 190:5871 191:522 192:5271 193:1910 194:1279 195:951 196:744 197:1230 198:2742 199:5005 200:4715 201:3810 202:973 203:744 204:2221 205:1854 206:1582 207:1628 208:1583 209:2029 210:351 211:447 212:1027 213:797 214:922 215:35 216:2587 217:460 218:548 219:19 220:34 221:415 222:24 223:976 End of report