IPv4 R&E Routing Table Report 20:15 GMT Mon 17 Mar, 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: 266173 Prefixes after maximum aggregation (per Origin AS): 115718 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 138528 Number of IPv4 prefixes with a valid ROA: 119853 Number of IPv4 prefixes with an invalid ROA: 22 Number of IPv4 prefixes with no ROA: 146298 Total ASes present in the Internet Routing Table: 20463 Prefixes per ASN: 13.01 Origin-only ASes present in the Internet Routing Table: 17600 Origin ASes announcing only one prefix: 7819 Transit ASes present in the Internet Routing Table: 2863 Transit-only ASes present in the Internet Routing Table: 730 Paths with bogon ASNs present in the IPv4 Routing Table: 6 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: 291 Number of instances of unregistered ASNs: 292 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 8027 Prefixes from 32-bit ASNs in the Routing Table: 31135 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 129 Number of addresses announced to Internet: 1565794685 Equivalent to 93 /8s, 84 /16s and 33 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 84816 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32033 Total APNIC prefixes after maximum aggregation: 7588 APNIC Deaggregation factor: 4.22 Prefixes being announced from the APNIC address blocks: 30755 Unique aggregates announced from the APNIC address blocks: 8175 APNIC Region origin ASes present in the Internet Routing Table: 1198 APNIC Prefixes per ASN: 25.67 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 213 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: 542 Number of APNIC addresses announced to Internet: 169397100 Equivalent to 10 /8s, 24 /16s and 203 /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: 125384 Total ARIN prefixes after maximum aggregation: 64328 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123042 Unique aggregates announced from the ARIN address blocks: 66135 ARIN Region origin ASes present in the Internet Routing Table: 9334 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3887 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2161 Number of ARIN addresses announced to Internet: 964907521 Equivalent to 57 /8s, 131 /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: 47348 Total RIPE prefixes after maximum aggregation: 25825 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 49253 Unique aggregates announced from the RIPE address blocks: 36262 RIPE Region origin ASes present in the Internet Routing Table: 4512 RIPE Prefixes per ASN: 10.92 RIPE Region origin ASes announcing only one prefix: 1876 RIPE Region transit ASes present in the Internet Routing Table: 668 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1812 Number of RIPE addresses announced to Internet: 288037840 Equivalent to 17 /8s, 43 /16s and 27 /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: 50879 Total LACNIC prefixes after maximum aggregation: 15553 LACNIC Deaggregation factor: 3.27 Prefixes being announced from the LACNIC address blocks: 49554 Unique aggregates announced from the LACNIC address blocks: 23901 LACNIC Region origin ASes present in the Internet Routing Table: 4289 LACNIC Prefixes per ASN: 11.55 LACNIC Region origin ASes announcing only one prefix: 1476 LACNIC Region transit ASes present in the Internet Routing Table: 888 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3367 Number of LACNIC addresses announced to Internet: 100688448 Equivalent to 6 /8s, 0 /16s and 98 /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: 10238 Total AfriNIC prefixes after maximum aggregation: 2210 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 13440 Unique aggregates announced from the AfriNIC address blocks: 3935 AfriNIC Region origin ASes present in the Internet Routing Table: 270 AfriNIC Prefixes per ASN: 49.78 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 145 Number of AfriNIC addresses announced to Internet: 42709248 Equivalent to 2 /8s, 139 /16s and 177 /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 10142 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1573 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1502 192 53 CMNET-HUNAN-AP China Mobile communication 24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 640 2170 465 SINET-AS Research Organization of Informa 17561 558 36 225 LCS-AS-AP LARUS Limited, HK 24445 503 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 480 783 138 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 12901 39642 3963 AMAZON-02, US 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2502 185 1516 USDA-1, US 367 2434 2912 1174 DNIC-ASBLK-00306-00371, US 36352 2283 192 1040 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1804 3547 466 CELLCO-PART, US 209 1670 4890 278 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 1237 97 1001 AKAMAI-ASN1, NL 3215 926 4894 282 France Telecom - Orange, FR 34984 887 86 484 TELLCOM-AS, TR 3257 780 2067 684 GTT-BACKBONE GTT, US 25019 699 1290 134 SAUDINETSTC-AS, SA 8452 602 1842 17 TE-AS TE-AS, EG 203214 582 45 351 HULUMTELE, IQ 8376 571 53 22 Jordan Data Communications, JO 212238 569 41 503 CDNEXT, GB 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 6885 2011 956 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1733 256 1226 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 53 TIM SA, BR 18881 871 1127 31 TELEFONICA BRASIL S.A, BR 28006 643 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 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 1456 389 16 LINKdotNET-AS, EG 29571 1067 102 93 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 863 509 44 RAYA-AS, EG 36935 680 520 41 Vodafone-, EG 36992 604 1229 126 ETISALAT-MISR, EG 36914 548 82 3 KENET-AS, KE 37069 455 1030 15 MOBINIL, EG 36903 417 195 306 MT-MPLS, MA 2018 374 318 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 12901 39642 3963 AMAZON-02, US 9808 10142 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 6885 2011 956 UNINET, MX 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2502 185 1516 USDA-1, US 367 2434 2912 1174 DNIC-ASBLK-00306-00371, US 36352 2283 192 1040 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11830 1993 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 10142 10055 CHINAMOBILE-CN China Mobile Communications Grou 8151 6885 5929 UNINET, MX 22773 3374 3199 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1877 1660 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1502 1449 CMNET-HUNAN-AP China Mobile communications corp 24863 1456 1440 LINKdotNET-AS, EG 56046 1573 1394 CMNET-JIANGSU-AP China Mobile communications co 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 53966 UNALLOCATED 8.39.98.0/24 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 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 23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA 23.158.216.0/24 Transit: 22427 GNET-AS, 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 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 /11:43 /12:151 /13:222 /14:577 /15:1104 /16:7638 /17:3369 /18:4213 /19:7699 /20:12448 /21:15466 /22:28079 /23:27896 /24:156998 /25:60 /26:75 /27:36 /28:16 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3580 6885 UNINET, MX 22773 2516 3374 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2334 12901 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 978 1733 Telmex Colombia S.A., CO 209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US 19901 927 1164 BRSPD-PUBLIC, US 36352 905 2283 AS-COLOCROSSING, US 11776 881 1877 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:61 2:466 3:589 4:5 5:754 6:159 7:5 8:640 11:171 12:1001 13:292 14:141 15:300 16:241 17:5 18:887 20:173 21:4 22:188 23:2518 24:953 27:23 29:19 31:417 32:18 34:10 35:131 36:1230 37:1004 38:2304 39:543 40:54 41:941 42:212 43:203 44:25 45:4082 46:891 47:84 49:55 50:351 51:382 52:1384 54:276 55:1062 56:9 57:19 58:31 59:26 60:16 61:65 62:525 63:778 64:1886 65:1085 66:1628 67:974 68:430 69:1223 70:443 71:214 72:830 74:978 75:430 76:244 77:395 78:338 79:321 80:271 81:332 82:679 83:243 84:359 85:542 86:242 87:243 88:257 89:795 90:101 91:935 92:659 93:453 94:817 95:606 96:267 97:66 98:472 99:161 100:36 101:24 102:322 103:1236 104:1451 105:115 106:63 107:1484 108:538 109:362 110:57 111:1916 112:463 113:37 114:64 115:18 116:53 117:1047 118:163 119:132 120:1169 121:43 122:110 123:144 124:57 125:23 126:1 128:481 129:280 130:660 131:939 132:562 133:213 134:533 135:115 136:544 137:507 138:1037 139:428 140:698 141:419 142:975 143:712 144:419 145:75 146:684 147:529 148:854 149:712 150:376 151:673 152:520 153:126 154:1528 155:797 156:1369 157:376 158:503 159:664 160:832 161:726 162:1009 163:342 164:732 165:780 166:713 167:648 168:1490 169:144 170:1636 171:122 172:1391 173:802 174:255 175:63 176:693 177:1110 178:477 179:794 180:50 181:1902 182:46 183:883 184:511 185:3335 186:2468 187:1307 188:743 189:1710 190:5151 191:504 192:5105 193:1740 194:1212 195:898 196:666 197:1525 198:2676 199:4877 200:4089 201:3420 202:987 203:712 204:2137 205:1977 206:1569 207:1516 208:1369 209:1961 210:310 211:425 212:953 213:796 214:1013 215:38 216:2506 217:434 218:525 219:20 220:24 221:301 222:31 223:739 End of report