IPv4 R&E Routing Table Report 20:15 GMT Fri 08 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: 276813 Prefixes after maximum aggregation (per Origin AS): 117849 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 140615 Number of IPv4 prefixes with a valid ROA: 129551 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147220 Total ASes present in the Internet Routing Table: 20263 Prefixes per ASN: 13.66 Origin-only ASes present in the Internet Routing Table: 17484 Origin ASes announcing only one prefix: 7789 Transit ASes present in the Internet Routing Table: 2779 Transit-only ASes present in the Internet Routing Table: 674 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 331 Number of instances of unregistered ASNs: 360 Number of 32-bit ASNs allocated by the RIRs: 47085 Number of 32-bit ASNs visible in the Routing Table: 7949 Prefixes from 32-bit ASNs in the Routing Table: 32144 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: 89 Number of addresses announced to Internet: 1630540293 Equivalent to 97 /8s, 48 /16s and 18 /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: 87625 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35922 Total APNIC prefixes after maximum aggregation: 7543 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 34842 Unique aggregates announced from the APNIC address blocks: 7891 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 29.13 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 188 Average APNIC Region AS path length visible: 7.4 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: 174216300 Equivalent to 10 /8s, 98 /16s and 84 /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: 126350 Total ARIN prefixes after maximum aggregation: 66362 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124339 Unique aggregates announced from the ARIN address blocks: 68171 ARIN Region origin ASes present in the Internet Routing Table: 9258 ARIN Prefixes per ASN: 13.43 ARIN Region origin ASes announcing only one prefix: 3846 ARIN Region transit ASes present in the Internet Routing Table: 879 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: 2166 Number of ARIN addresses announced to Internet: 1025004041 Equivalent to 61 /8s, 24 /16s and 82 /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: 47129 Total RIPE prefixes after maximum aggregation: 25287 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49296 Unique aggregates announced from the RIPE address blocks: 36141 RIPE Region origin ASes present in the Internet Routing Table: 4439 RIPE Prefixes per ASN: 11.11 RIPE Region origin ASes announcing only one prefix: 1852 RIPE Region transit ASes present in the Internet Routing Table: 653 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: 1805 Number of RIPE addresses announced to Internet: 276323664 Equivalent to 16 /8s, 120 /16s and 93 /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: 56097 Total LACNIC prefixes after maximum aggregation: 16136 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54335 Unique aggregates announced from the LACNIC address blocks: 24181 LACNIC Region origin ASes present in the Internet Routing Table: 4305 LACNIC Prefixes per ASN: 12.62 LACNIC Region origin ASes announcing only one prefix: 1528 LACNIC Region transit ASes present in the Internet Routing Table: 857 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3286 Number of LACNIC addresses announced to Internet: 108974656 Equivalent to 6 /8s, 126 /16s and 210 /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: 10984 Total AfriNIC prefixes after maximum aggregation: 2269 AfriNIC Deaggregation factor: 4.84 Prefixes being announced from the AfriNIC address blocks: 13912 Unique aggregates announced from the AfriNIC address blocks: 4144 AfriNIC Region origin ASes present in the Internet Routing Table: 264 AfriNIC Prefixes per ASN: 52.70 AfriNIC Region origin ASes announcing only one prefix: 89 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 136 Number of AfriNIC addresses announced to Internet: 45912576 Equivalent to 2 /8s, 188 /16s and 146 /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 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2904 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1676 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1662 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 803 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2153 460 SINET-AS Research Organization of Informa 132525 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 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 13774 41094 5304 AMAZON-02, US 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2910 227 1733 USDA-1, US 36352 2553 209 1135 AS-COLOCROSSING, US 367 2453 2966 1150 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1581 22816 1180 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 1210 95 986 AKAMAI-ASN1, NL 3215 922 4895 285 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 801 1301 130 SAUDINETSTC-AS, SA 212238 669 48 593 CDNEXT, GB 34984 617 93 479 TELLCOM-AS, TR 8376 580 53 23 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 35819 562 567 61 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 7396 1996 876 UNINET, MX 11830 1985 369 64 Instituto Costarricense de Electricidad y 10620 1654 238 1202 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1182 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 887 1127 31 TELEFONICA BRASIL S.A, BR 11664 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 724 122 78 Alestra, S. de R.L. de C.V., MX 27651 650 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 1492 572 23 RAYA-AS, EG 29571 1104 93 63 ORANGE-COTE-IVOIRE, CI 24863 1017 388 20 LINKdotNET-AS, EG 37069 869 1112 11 MOBINIL, EG 36935 594 518 29 Vodafone-, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 506 1088 219 ETISALAT-MISR, EG 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 13774 41094 5304 AMAZON-02, US 9808 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7396 1996 876 UNINET, MX 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2910 227 1733 USDA-1, US 56046 2904 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2553 209 1135 AS-COLOCROSSING, US 367 2453 2966 1150 DNIC-ASBLK-00306-00371, US 11830 1985 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 12422 12307 CHINAMOBILE-CN China Mobile Communications Grou 8151 7396 6520 UNINET, MX 22773 3334 3171 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2904 2714 CMNET-JIANGSU-AP China Mobile communications co 11830 1985 1921 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1676 1626 CMNET-HUNAN-AP China Mobile communications corp 56041 1662 1584 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1492 1469 RAYA-AS, EG 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 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 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 /10:30 /11:51 /12:159 /13:215 /14:587 /15:1110 /16:7746 /17:3434 /18:4196 /19:7690 /20:13053 /21:15906 /22:28533 /23:29154 /24:164676 /25:67 /26:83 /27:52 /28:18 /29:11 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3991 7396 UNINET, MX 22773 2489 3334 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13774 AMAZON-02, US 11830 1689 1985 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1365 BRSPD-PUBLIC, US 36352 1017 2553 AS-COLOCROSSING, US 10620 965 1654 Telmex Colombia S.A., CO 209 962 1648 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) ---------------------------------------------- 1:24 2:453 3:870 4:5 5:789 6:144 7:5 8:643 9:1 11:171 12:960 13:414 14:112 15:310 16:247 17:3 18:891 20:191 21:4 22:188 23:2627 24:662 27:22 29:19 31:472 32:18 34:10 35:175 36:3002 37:721 38:2506 39:606 40:84 41:1054 42:22 43:216 44:29 45:4115 46:981 47:112 49:25 50:473 51:381 52:1381 54:317 55:1113 56:11 57:24 58:17 59:31 60:31 61:60 62:496 63:778 64:1929 65:1097 66:1582 67:1088 68:366 69:1245 70:452 71:189 72:697 74:965 75:320 76:251 77:456 78:309 79:242 80:298 81:370 82:716 83:217 84:313 85:458 86:242 87:186 88:299 89:670 90:106 91:927 92:665 93:442 94:908 95:648 96:265 97:53 98:500 99:194 100:40 101:31 102:389 103:1269 104:1663 105:173 106:47 107:1567 108:525 109:405 110:46 111:2168 112:830 113:37 114:55 115:21 116:51 117:1196 118:79 119:66 120:1478 121:49 122:60 123:147 124:65 125:25 126:1 128:522 129:402 130:676 131:970 132:567 133:212 134:484 135:121 136:669 137:509 138:1001 139:446 140:677 141:375 142:996 143:824 144:424 145:124 146:645 147:473 148:987 149:696 150:212 151:802 152:624 153:134 154:1167 155:902 156:926 157:420 158:565 159:712 160:893 161:653 162:1042 163:439 164:735 165:616 166:803 167:676 168:1550 169:161 170:1763 171:102 172:1313 173:809 174:359 175:92 176:489 177:988 178:579 179:829 180:43 181:2262 182:29 183:1139 184:457 185:3292 186:2954 187:1606 188:782 189:1961 190:6062 191:529 192:5205 193:1778 194:1148 195:868 196:668 197:1157 198:2754 199:5072 200:4616 201:3799 202:976 203:692 204:2207 205:1832 206:1583 207:1618 208:1584 209:1938 210:342 211:478 212:869 213:724 214:942 215:37 216:2577 217:438 218:580 219:18 220:32 221:472 222:24 223:1213 End of report