IPv4 R&E Routing Table Report 20:15 GMT Fri 09 May, 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: 261890 Prefixes after maximum aggregation (per Origin AS): 115074 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135140 Number of IPv4 prefixes with a valid ROA: 117584 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 144262 Total ASes present in the Internet Routing Table: 19664 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 17011 Origin ASes announcing only one prefix: 7740 Transit ASes present in the Internet Routing Table: 2653 Transit-only ASes present in the Internet Routing Table: 705 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 308 Number of instances of unregistered ASNs: 312 Number of 32-bit ASNs allocated by the RIRs: 46373 Number of 32-bit ASNs visible in the Routing Table: 7359 Prefixes from 32-bit ASNs in the Routing Table: 27423 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 134 Number of addresses announced to Internet: 1547642077 Equivalent to 92 /8s, 63 /16s and 36 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 41.8 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: 82389 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32653 Total APNIC prefixes after maximum aggregation: 7624 APNIC Deaggregation factor: 4.28 Prefixes being announced from the APNIC address blocks: 31105 Unique aggregates announced from the APNIC address blocks: 8020 APNIC Region origin ASes present in the Internet Routing Table: 1225 APNIC Prefixes per ASN: 25.39 APNIC Region origin ASes announcing only one prefix: 480 APNIC Region transit ASes present in the Internet Routing Table: 201 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: 556 Number of APNIC addresses announced to Internet: 167621740 Equivalent to 9 /8s, 253 /16s and 180 /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: 125615 Total ARIN prefixes after maximum aggregation: 65242 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122515 Unique aggregates announced from the ARIN address blocks: 65892 ARIN Region origin ASes present in the Internet Routing Table: 9354 ARIN Prefixes per ASN: 13.10 ARIN Region origin ASes announcing only one prefix: 3903 ARIN Region transit ASes present in the Internet Routing Table: 870 Average ARIN Region AS path length visible: 5.3 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: 960687585 Equivalent to 57 /8s, 66 /16s and 237 /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: 48233 Total RIPE prefixes after maximum aggregation: 26081 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50035 Unique aggregates announced from the RIPE address blocks: 36391 RIPE Region origin ASes present in the Internet Routing Table: 4547 RIPE Prefixes per ASN: 11.00 RIPE Region origin ASes announcing only one prefix: 1931 RIPE Region transit ASes present in the Internet Routing Table: 688 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1851 Number of RIPE addresses announced to Internet: 281130576 Equivalent to 16 /8s, 193 /16s and 182 /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: 44617 Total LACNIC prefixes after maximum aggregation: 13608 LACNIC Deaggregation factor: 3.28 Prefixes being announced from the LACNIC address blocks: 43766 Unique aggregates announced from the LACNIC address blocks: 20276 LACNIC Region origin ASes present in the Internet Routing Table: 3446 LACNIC Prefixes per ASN: 12.70 LACNIC Region origin ASes announcing only one prefix: 1319 LACNIC Region transit ASes present in the Internet Routing Table: 695 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2623 Number of LACNIC addresses announced to Internet: 96821568 Equivalent to 5 /8s, 197 /16s and 97 /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: 10464 Total AfriNIC prefixes after maximum aggregation: 2313 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 14335 Unique aggregates announced from the AfriNIC address blocks: 4444 AfriNIC Region origin ASes present in the Internet Routing Table: 265 AfriNIC Prefixes per ASN: 54.09 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 142 Number of AfriNIC addresses announced to Internet: 41329152 Equivalent to 2 /8s, 118 /16s and 162 /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 10610 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1701 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 869 55 414 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 505 800 138 ALIBABA-CN-NET Alibaba US Technology Co., 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 13306 40837 4723 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2710 206 1654 USDA-1, US 36352 2515 207 1119 AS-COLOCROSSING, US 367 2428 2905 1177 DNIC-ASBLK-00306-00371, US 7018 2098 22891 1551 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 488 CELLCO-PART, US 209 1664 4890 274 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 1203 94 984 AKAMAI-ASN1, NL 3257 994 2077 747 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 814 1301 130 SAUDINETSTC-AS, SA 34984 686 76 409 TELLCOM-AS, TR 8452 661 1842 17 TE-AS TE-AS, EG 8376 574 53 22 Jordan Data Communications, JO 212238 569 41 501 CDNEXT, GB 51167 568 113 251 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 7472 2025 1009 UNINET, MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1337 784 209 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1190 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 TELEFONICA BRASIL S.A, BR 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 1491 389 16 LINKdotNET-AS, EG 24835 1061 553 39 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 968 100 75 ORANGE-COTE-IVOIRE, CI 36935 720 142 185 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 550 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 373 318 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 13306 40837 4723 AMAZON-02, US 9808 10610 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7472 2025 1009 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2710 206 1654 USDA-1, US 36352 2515 207 1119 AS-COLOCROSSING, US 367 2428 2905 1177 DNIC-ASBLK-00306-00371, US 7018 2098 22891 1551 ATT-INTERNET4, US 11830 1995 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 10610 10515 CHINAMOBILE-CN China Mobile Communications Grou 8151 7472 6463 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1995 1931 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1701 1515 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56047 1486 1433 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 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 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 /8:13 /9:10 /10:29 /11:41 /12:151 /13:206 /14:569 /15:1096 /16:7562 /17:3428 /18:4189 /19:7584 /20:12364 /21:15189 /22:27570 /23:27565 /24:154097 /25:63 /26:85 /27:36 /28:12 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3970 7472 UNINET, MX 22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2322 13306 AMAZON-02, US 11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR 10620 1089 1930 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 995 2515 AS-COLOCROSSING, US 19901 974 1252 BRSPD-PUBLIC, US 209 964 1664 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:66 2:493 3:695 4:5 5:784 6:155 7:5 8:680 11:171 12:998 13:325 14:111 15:301 16:245 17:6 18:885 20:177 21:4 22:188 23:2578 24:646 27:21 29:19 31:468 32:9 33:1 34:10 35:134 36:1578 37:910 38:1936 39:553 40:62 41:925 42:213 43:196 44:34 45:3639 46:947 47:85 49:20 50:363 51:385 52:1388 54:303 55:1094 56:11 57:16 58:18 59:31 60:16 61:72 62:544 63:764 64:1990 65:1075 66:1609 67:961 68:404 69:1151 70:442 71:203 72:778 74:961 75:426 76:249 77:466 78:340 79:281 80:294 81:352 82:684 83:246 84:342 85:447 86:235 87:237 88:277 89:850 90:103 91:932 92:596 93:456 94:908 95:617 96:289 97:59 98:456 99:168 100:36 101:22 102:363 103:1241 104:1462 105:140 106:16 107:1504 108:561 109:374 110:34 111:1946 112:456 113:39 114:42 115:12 116:62 117:1045 118:73 119:131 120:1188 121:46 122:66 123:78 124:56 125:25 128:471 129:307 130:688 131:903 132:561 133:212 134:507 135:113 136:576 137:499 138:883 139:442 140:710 141:465 142:1026 143:664 144:433 145:135 146:679 147:491 148:869 149:786 150:384 151:634 152:482 153:129 154:1742 155:839 156:1413 157:380 158:549 159:686 160:826 161:670 162:952 163:356 164:713 165:766 166:780 167:632 168:1100 169:144 170:1590 171:122 172:1372 173:830 174:250 175:55 176:659 177:805 178:487 179:662 180:49 181:1745 182:30 183:892 184:452 185:3350 186:2008 187:1493 188:775 189:1778 190:4221 191:422 192:5155 193:1817 194:1199 195:931 196:695 197:1586 198:2733 199:4900 200:3549 201:3238 202:1005 203:744 204:2155 205:1937 206:1559 207:1509 208:1428 209:1933 210:308 211:432 212:938 213:834 214:984 215:42 216:2537 217:416 218:520 219:19 220:26 221:334 222:32 223:773 End of report