IPv4 R&E Routing Table Report 20:15 GMT Tue 15 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: 277629 Prefixes after maximum aggregation (per Origin AS): 120983 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 143930 Number of IPv4 prefixes with a valid ROA: 130691 Number of IPv4 prefixes with an invalid ROA: 215 Number of IPv4 prefixes with no ROA: 146723 Total ASes present in the Internet Routing Table: 21070 Prefixes per ASN: 13.18 Origin-only ASes present in the Internet Routing Table: 18135 Origin ASes announcing only one prefix: 8123 Transit ASes present in the Internet Routing Table: 2935 Transit-only ASes present in the Internet Routing Table: 727 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: 352 Number of instances of unregistered ASNs: 384 Number of 32-bit ASNs allocated by the RIRs: 46832 Number of 32-bit ASNs visible in the Routing Table: 8513 Prefixes from 32-bit ASNs in the Routing Table: 33692 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: 103 Number of addresses announced to Internet: 1646517253 Equivalent to 98 /8s, 35 /16s and 220 /24s Percentage of available address space announced: 44.5 Percentage of allocated address space announced: 44.5 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: 88579 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34656 Total APNIC prefixes after maximum aggregation: 7708 APNIC Deaggregation factor: 4.50 Prefixes being announced from the APNIC address blocks: 33469 Unique aggregates announced from the APNIC address blocks: 8057 APNIC Region origin ASes present in the Internet Routing Table: 1272 APNIC Prefixes per ASN: 26.31 APNIC Region origin ASes announcing only one prefix: 508 APNIC Region transit ASes present in the Internet Routing Table: 209 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: 613 Number of APNIC addresses announced to Internet: 173210220 Equivalent to 10 /8s, 82 /16s and 250 /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: 126189 Total ARIN prefixes after maximum aggregation: 66435 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124860 Unique aggregates announced from the ARIN address blocks: 67948 ARIN Region origin ASes present in the Internet Routing Table: 9335 ARIN Prefixes per ASN: 13.38 ARIN Region origin ASes announcing only one prefix: 3869 ARIN Region transit ASes present in the Internet Routing Table: 883 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: 2199 Number of ARIN addresses announced to Internet: 1028007177 Equivalent to 61 /8s, 70 /16s and 37 /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: 49887 Total RIPE prefixes after maximum aggregation: 27475 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51370 Unique aggregates announced from the RIPE address blocks: 38305 RIPE Region origin ASes present in the Internet Routing Table: 4652 RIPE Prefixes per ASN: 11.04 RIPE Region origin ASes announcing only one prefix: 1959 RIPE Region transit ASes present in the Internet Routing Table: 697 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: 1913 Number of RIPE addresses announced to Internet: 286624336 Equivalent to 17 /8s, 21 /16s and 138 /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: 57014 Total LACNIC prefixes after maximum aggregation: 16849 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 55314 Unique aggregates announced from the LACNIC address blocks: 25141 LACNIC Region origin ASes present in the Internet Routing Table: 4669 LACNIC Prefixes per ASN: 11.85 LACNIC Region origin ASes announcing only one prefix: 1683 LACNIC Region transit ASes present in the Internet Routing Table: 934 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: 3639 Number of LACNIC addresses announced to Internet: 109064256 Equivalent to 6 /8s, 128 /16s and 48 /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: 9531 Total AfriNIC prefixes after maximum aggregation: 2256 AfriNIC Deaggregation factor: 4.22 Prefixes being announced from the AfriNIC address blocks: 12513 Unique aggregates announced from the AfriNIC address blocks: 4378 AfriNIC Region origin ASes present in the Internet Routing Table: 283 AfriNIC Prefixes per ASN: 44.22 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 69 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 149 Number of AfriNIC addresses announced to Internet: 49498368 Equivalent to 2 /8s, 243 /16s and 73 /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 11628 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 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 611 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 456 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 13665 40960 5267 AMAZON-02, US 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2860 217 1726 USDA-1, US 36352 2555 210 1148 AS-COLOCROSSING, US 367 2504 3072 1179 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1717 22849 1269 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 1179 92 959 AKAMAI-ASN1, NL 3257 1046 2083 809 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 809 1301 130 SAUDINETSTC-AS, SA 8452 715 1841 16 TE-AS TE-AS, EG 58224 658 427 474 TCI, IR 212238 656 46 580 CDNEXT, GB 8376 570 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 7479 2012 898 UNINET, MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 Telmex Colombia S.A., CO 3816 1344 786 204 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1018 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11172 725 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 648 77 298 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 29571 1154 101 66 ORANGE-COTE-IVOIRE, CI 24835 917 513 27 RAYA-AS, EG 37069 702 1112 11 MOBINIL, EG 36914 570 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 24863 549 389 22 LINKdotNET-AS, EG 36992 504 1064 220 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 357 515 9 Vodafone-, EG 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 13665 40960 5267 AMAZON-02, US 9808 11628 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7479 2012 898 UNINET, MX 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2860 217 1726 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2555 210 1148 AS-COLOCROSSING, US 367 2504 3072 1179 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 11628 11513 CHINAMOBILE-CN China Mobile Communications Grou 8151 7479 6581 UNINET, MX 22773 3338 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2590 2402 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 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp 6167 1927 1410 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 /12:162 /13:219 /14:590 /15:1107 /16:7714 /17:3478 /18:4233 /19:7703 /20:12961 /21:15905 /22:27436 /23:29384 /24:166399 /25:64 /26:81 /27:37 /28:17 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4022 7479 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2340 13665 AMAZON-02, US 11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1026 1348 BRSPD-PUBLIC, US 36352 1022 2555 AS-COLOCROSSING, 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) ---------------------------------------------- 1:36 2:443 3:848 4:5 5:713 6:150 7:5 8:649 11:171 12:969 13:398 14:134 15:308 16:247 17:3 18:887 20:188 21:4 22:188 23:2670 24:691 27:43 29:19 31:520 32:18 33:1 34:10 35:175 36:2317 37:718 38:2591 39:554 40:84 41:1028 42:21 43:232 44:28 45:4445 46:988 47:110 49:26 50:412 51:390 52:1383 54:318 55:1108 56:11 57:24 58:16 59:37 60:31 61:63 62:541 63:782 64:1932 65:1130 66:1608 67:1096 68:385 69:1256 70:460 71:191 72:711 74:971 75:320 76:241 77:488 78:374 79:238 80:287 81:357 82:722 83:225 84:361 85:478 86:242 87:216 88:303 89:719 90:108 91:936 92:661 93:485 94:997 95:745 96:276 97:53 98:508 99:197 100:42 101:64 102:382 103:1368 104:1712 105:183 106:40 107:1530 108:517 109:434 110:43 111:1955 112:623 113:35 114:63 115:27 116:59 117:1096 118:69 119:83 120:1422 121:49 122:70 123:131 124:65 125:25 126:1 128:536 129:350 130:673 131:983 132:559 133:212 134:474 135:127 136:677 137:534 138:1031 139:443 140:778 141:371 142:1026 143:817 144:439 145:117 146:686 147:519 148:986 149:746 150:180 151:815 152:627 153:134 154:1248 155:908 156:1008 157:396 158:564 159:754 160:856 161:659 162:1066 163:439 164:725 165:583 166:814 167:708 168:1577 169:159 170:1786 171:107 172:1330 173:841 174:360 175:92 176:786 177:1106 178:486 179:885 180:43 181:2259 182:47 183:1048 184:461 185:3508 186:2864 187:1717 188:815 189:2013 190:6024 191:562 192:5289 193:1841 194:1267 195:961 196:715 197:1081 198:2757 199:5035 200:4709 201:3818 202:1007 203:709 204:2228 205:1855 206:1609 207:1621 208:1573 209:2002 210:361 211:462 212:1000 213:792 214:936 215:35 216:2575 217:462 218:550 219:18 220:37 221:449 222:24 223:1061 End of report