IPv4 R&E Routing Table Report 20:15 GMT Fri 16 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: 263545 Prefixes after maximum aggregation (per Origin AS): 115690 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135174 Number of IPv4 prefixes with a valid ROA: 118701 Number of IPv4 prefixes with an invalid ROA: 28 Number of IPv4 prefixes with no ROA: 144816 Total ASes present in the Internet Routing Table: 19759 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 17082 Origin ASes announcing only one prefix: 7757 Transit ASes present in the Internet Routing Table: 2677 Transit-only ASes present in the Internet Routing Table: 720 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: 314 Number of instances of unregistered ASNs: 318 Number of 32-bit ASNs allocated by the RIRs: 46423 Number of 32-bit ASNs visible in the Routing Table: 7429 Prefixes from 32-bit ASNs in the Routing Table: 27844 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: 136 Number of addresses announced to Internet: 1553370333 Equivalent to 92 /8s, 150 /16s and 140 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83294 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32373 Total APNIC prefixes after maximum aggregation: 7520 APNIC Deaggregation factor: 4.30 Prefixes being announced from the APNIC address blocks: 30799 Unique aggregates announced from the APNIC address blocks: 7609 APNIC Region origin ASes present in the Internet Routing Table: 1205 APNIC Prefixes per ASN: 25.56 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 206 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: 555 Number of APNIC addresses announced to Internet: 167563628 Equivalent to 9 /8s, 252 /16s and 209 /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: 125798 Total ARIN prefixes after maximum aggregation: 65498 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122920 Unique aggregates announced from the ARIN address blocks: 66028 ARIN Region origin ASes present in the Internet Routing Table: 9332 ARIN Prefixes per ASN: 13.17 ARIN Region origin ASes announcing only one prefix: 3895 ARIN Region transit ASes present in the Internet Routing Table: 867 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: 2178 Number of ARIN addresses announced to Internet: 960401889 Equivalent to 57 /8s, 62 /16s and 145 /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: 49268 Total RIPE prefixes after maximum aggregation: 26737 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 50969 Unique aggregates announced from the RIPE address blocks: 37220 RIPE Region origin ASes present in the Internet Routing Table: 4604 RIPE Prefixes per ASN: 11.07 RIPE Region origin ASes announcing only one prefix: 1926 RIPE Region transit ASes present in the Internet Routing Table: 700 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: 1877 Number of RIPE addresses announced to Internet: 281181008 Equivalent to 16 /8s, 194 /16s and 123 /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: 45001 Total LACNIC prefixes after maximum aggregation: 13385 LACNIC Deaggregation factor: 3.36 Prefixes being announced from the LACNIC address blocks: 44059 Unique aggregates announced from the LACNIC address blocks: 19994 LACNIC Region origin ASes present in the Internet Routing Table: 3484 LACNIC Prefixes per ASN: 12.65 LACNIC Region origin ASes announcing only one prefix: 1348 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: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2665 Number of LACNIC addresses announced to Internet: 97415744 Equivalent to 5 /8s, 206 /16s and 114 /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: 10791 Total AfriNIC prefixes after maximum aggregation: 2337 AfriNIC Deaggregation factor: 4.62 Prefixes being announced from the AfriNIC address blocks: 14662 Unique aggregates announced from the AfriNIC address blocks: 4205 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 51.27 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 154 Number of AfriNIC addresses announced to Internet: 46756096 Equivalent to 2 /8s, 201 /16s and 113 /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 10804 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1772 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 855 54 402 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 600 2154 463 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 520 852 139 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 13399 40824 5011 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2731 207 1676 USDA-1, US 36352 2528 208 1122 AS-COLOCROSSING, US 367 2449 2910 1178 DNIC-ASBLK-00306-00371, US 7018 2094 22887 1543 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1860 3758 488 CELLCO-PART, US 209 1663 4890 273 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 1177 92 966 AKAMAI-ASN1, NL 3257 931 2076 748 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 814 1301 129 SAUDINETSTC-AS, SA 8452 709 1842 17 TE-AS TE-AS, EG 34984 689 76 412 TELLCOM-AS, TR 212238 625 44 551 CDNEXT, GB 8376 570 53 21 Jordan Data Communications, JO 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 7458 2010 997 UNINET, MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1027 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 1495 389 16 LINKdotNET-AS, EG 24835 1037 523 36 RAYA-AS, EG 29571 981 100 75 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 585 125 166 Vodafone-, EG 36914 542 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 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 13399 40824 5011 AMAZON-02, US 9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7458 2010 997 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2731 207 1676 USDA-1, US 36352 2528 208 1122 AS-COLOCROSSING, US 367 2449 2910 1178 DNIC-ASBLK-00306-00371, US 7018 2094 22887 1543 ATT-INTERNET4, US 11830 1996 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 10804 10709 CHINAMOBILE-CN China Mobile Communications Grou 8151 7458 6461 UNINET, MX 22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1996 1932 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co 56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1495 1479 LINKdotNET-AS, EG 56047 1485 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 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 /12:150 /13:208 /14:573 /15:1099 /16:7633 /17:3452 /18:4205 /19:7661 /20:12347 /21:15240 /22:27391 /23:27787 /24:155486 /25:61 /26:79 /27:35 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7458 UNINET, MX 22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2330 13399 AMAZON-02, US 11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1008 2528 AS-COLOCROSSING, US 19901 978 1264 BRSPD-PUBLIC, US 209 964 1663 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) ---------------------------------------------- 1:19 2:476 3:741 4:6 5:776 6:156 7:5 8:680 11:171 12:996 13:364 14:114 15:301 16:246 17:6 18:882 20:177 21:4 22:188 23:2596 24:638 27:21 29:19 31:532 32:9 33:1 34:10 35:133 36:1714 37:904 38:1966 39:554 40:62 41:879 42:21 43:201 44:35 45:3618 46:958 47:92 49:18 50:363 51:386 52:1387 54:313 55:1090 56:11 57:18 58:17 59:15 60:16 61:74 62:543 63:753 64:1997 65:1085 66:1585 67:958 68:396 69:1128 70:413 71:202 72:733 74:950 75:427 76:248 77:468 78:364 79:287 80:300 81:368 82:737 83:231 84:342 85:452 86:233 87:230 88:292 89:858 90:104 91:933 92:612 93:485 94:912 95:677 96:289 97:59 98:458 99:179 100:35 101:22 102:400 103:1211 104:1629 105:217 106:29 107:1530 108:546 109:387 110:35 111:1961 112:460 113:39 114:40 115:22 116:62 117:1047 118:40 119:124 120:1220 121:45 122:59 123:78 124:57 125:25 128:494 129:394 130:689 131:901 132:564 133:212 134:494 135:113 136:610 137:501 138:874 139:430 140:701 141:458 142:1023 143:683 144:421 145:136 146:682 147:492 148:866 149:774 150:352 151:640 152:495 153:129 154:1696 155:843 156:1432 157:372 158:551 159:733 160:824 161:668 162:976 163:359 164:718 165:775 166:788 167:629 168:1142 169:154 170:1613 171:125 172:1372 173:842 174:255 175:62 176:688 177:841 178:472 179:710 180:49 181:1826 182:29 183:930 184:450 185:3516 186:2054 187:1402 188:808 189:1758 190:4249 191:447 192:5172 193:1894 194:1234 195:958 196:713 197:1564 198:2727 199:4914 200:3594 201:3288 202:967 203:725 204:2160 205:1935 206:1542 207:1508 208:1433 209:1936 210:290 211:437 212:1074 213:841 214:982 215:42 216:2528 217:426 218:520 219:19 220:28 221:339 222:31 223:792 End of report