IPv4 R&E Routing Table Report 20:15 GMT Tue 06 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: 262398 Prefixes after maximum aggregation (per Origin AS): 114869 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135189 Number of IPv4 prefixes with a valid ROA: 118580 Number of IPv4 prefixes with an invalid ROA: 49 Number of IPv4 prefixes with no ROA: 143769 Total ASes present in the Internet Routing Table: 19687 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 17017 Origin ASes announcing only one prefix: 7732 Transit ASes present in the Internet Routing Table: 2670 Transit-only ASes present in the Internet Routing Table: 713 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: 309 Number of instances of unregistered ASNs: 310 Number of 32-bit ASNs allocated by the RIRs: 46340 Number of 32-bit ASNs visible in the Routing Table: 7401 Prefixes from 32-bit ASNs in the Routing Table: 27730 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: 136 Number of addresses announced to Internet: 1555034525 Equivalent to 92 /8s, 175 /16s and 241 /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: 83504 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32105 Total APNIC prefixes after maximum aggregation: 7466 APNIC Deaggregation factor: 4.30 Prefixes being announced from the APNIC address blocks: 30586 Unique aggregates announced from the APNIC address blocks: 7857 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 25.57 APNIC Region origin ASes announcing only one prefix: 466 APNIC Region transit ASes present in the Internet Routing Table: 204 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: 541 Number of APNIC addresses announced to Internet: 167500908 Equivalent to 9 /8s, 251 /16s and 220 /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: 125746 Total ARIN prefixes after maximum aggregation: 65087 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122653 Unique aggregates announced from the ARIN address blocks: 65925 ARIN Region origin ASes present in the Internet Routing Table: 9346 ARIN Prefixes per ASN: 13.12 ARIN Region origin ASes announcing only one prefix: 3908 ARIN Region transit ASes present in the Internet Routing Table: 859 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: 968416737 Equivalent to 57 /8s, 184 /16s and 221 /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: 49749 Total RIPE prefixes after maximum aggregation: 26234 RIPE Deaggregation factor: 1.90 Prefixes being announced from the RIPE address blocks: 51529 Unique aggregates announced from the RIPE address blocks: 36651 RIPE Region origin ASes present in the Internet Routing Table: 4562 RIPE Prefixes per ASN: 11.30 RIPE Region origin ASes announcing only one prefix: 1924 RIPE Region transit ASes present in the Internet Routing Table: 693 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: 1864 Number of RIPE addresses announced to Internet: 281394512 Equivalent to 16 /8s, 197 /16s and 189 /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: 44058 Total LACNIC prefixes after maximum aggregation: 13538 LACNIC Deaggregation factor: 3.25 Prefixes being announced from the LACNIC address blocks: 43174 Unique aggregates announced from the LACNIC address blocks: 20085 LACNIC Region origin ASes present in the Internet Routing Table: 3480 LACNIC Prefixes per ASN: 12.41 LACNIC Region origin ASes announcing only one prefix: 1333 LACNIC Region transit ASes present in the Internet Routing Table: 707 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: 2670 Number of LACNIC addresses announced to Internet: 96321792 Equivalent to 5 /8s, 189 /16s and 193 /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: 10431 Total AfriNIC prefixes after maximum aggregation: 2337 AfriNIC Deaggregation factor: 4.46 Prefixes being announced from the AfriNIC address blocks: 14320 Unique aggregates announced from the AfriNIC address blocks: 4552 AfriNIC Region origin ASes present in the Internet Routing Table: 268 AfriNIC Prefixes per ASN: 53.43 AfriNIC Region origin ASes announcing only one prefix: 101 AfriNIC Region transit ASes present in the Internet Routing Table: 77 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 148 Number of AfriNIC addresses announced to Internet: 41348608 Equivalent to 2 /8s, 118 /16s and 238 /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 10359 8754 87 CHINAMOBILE-CN China Mobile Communication 56046 1681 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 897 57 410 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 771 500 72 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 500 796 137 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 13318 40826 4509 AMAZON-02, US 22773 3352 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2671 204 1645 USDA-1, US 36352 2520 207 1121 AS-COLOCROSSING, US 367 2449 2906 1191 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 488 CELLCO-PART, US 209 1665 4890 275 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 3251 197 64 ALJAWWALSTC-AS, SA 20940 1204 94 983 AKAMAI-ASN1, NL 3257 996 2077 748 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 815 1301 129 SAUDINETSTC-AS, SA 34984 686 76 409 TELLCOM-AS, TR 8452 660 1842 17 TE-AS TE-AS, EG 203214 602 46 367 HULUMTELE, IQ 8376 573 53 22 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 6859 1873 1030 UNINET, MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 26615 1014 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 1488 389 16 LINKdotNET-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 975 100 76 ORANGE-COTE-IVOIRE, CI 24835 882 552 38 RAYA-AS, EG 36935 719 141 184 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 550 82 3 KENET-AS, KE 37069 494 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 372 318 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 13318 40826 4509 AMAZON-02, US 9808 10359 8754 87 CHINAMOBILE-CN China Mobile Communication 8151 6859 1873 1030 UNINET, MX 22773 3352 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 39891 3251 197 64 ALJAWWALSTC-AS, SA 4155 2671 204 1645 USDA-1, US 36352 2520 207 1121 AS-COLOCROSSING, US 367 2449 2906 1191 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 ATT-INTERNET4, US 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 10359 10272 CHINAMOBILE-CN China Mobile Communications Grou 8151 6859 5829 UNINET, MX 22773 3352 3188 ASN-CXA-ALL-CCI-22773-RDC, US 39891 3251 3187 ALJAWWALSTC-AS, SA 11830 1994 1930 Instituto Costarricense de Electricidad y Telec 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1681 1495 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1488 1472 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 23.158.216.0/24 Origin: 204535 RESERVED, ZZ 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 /11:41 /12:151 /13:214 /14:579 /15:1099 /16:7623 /17:3441 /18:4197 /19:7635 /20:12307 /21:15230 /22:27519 /23:27573 /24:154514 /25:60 /26:83 /27:36 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3571 6859 UNINET, MX 22773 2505 3352 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2368 3251 ALJAWWALSTC-AS, SA 16509 2330 13318 AMAZON-02, US 11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR 10620 1089 1930 Telmex Colombia S.A., CO 36352 1003 2520 AS-COLOCROSSING, US 209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US 19901 949 1223 BRSPD-PUBLIC, 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 3:684 4:6 5:1054 6:155 7:5 8:681 11:171 12:997 13:307 14:110 15:301 16:245 17:6 18:889 20:176 21:4 22:188 23:2566 24:649 27:21 29:19 31:472 32:9 33:1 34:10 35:133 36:1394 37:1071 38:1900 39:551 40:62 41:951 42:213 43:189 44:34 45:3644 46:949 47:85 49:19 50:346 51:385 52:1384 54:298 55:1090 56:11 57:15 58:18 59:31 60:16 61:72 62:545 63:768 64:1985 65:1118 66:1573 67:953 68:406 69:1146 70:442 71:203 72:813 74:961 75:423 76:249 77:466 78:590 79:280 80:294 81:354 82:741 83:245 84:342 85:450 86:233 87:242 88:277 89:841 90:103 91:939 92:596 93:843 94:921 95:745 96:289 97:66 98:457 99:164 100:35 101:18 102:431 103:1217 104:1440 105:140 106:16 107:1497 108:551 109:386 110:33 111:1929 112:452 113:39 114:43 115:13 116:62 117:1041 118:62 119:130 120:1174 121:46 122:70 123:70 124:56 125:25 128:463 129:304 130:692 131:895 132:561 133:212 134:506 135:112 136:576 137:494 138:886 139:438 140:708 141:455 142:1024 143:644 144:431 145:135 146:674 147:494 148:863 149:743 150:386 151:630 152:476 153:129 154:1802 155:825 156:1408 157:373 158:542 159:686 160:836 161:668 162:940 163:351 164:709 165:777 166:774 167:640 168:1109 169:142 170:1596 171:123 172:1360 173:831 174:250 175:55 176:661 177:815 178:488 179:670 180:49 181:1741 182:29 183:867 184:452 185:3364 186:2026 187:1301 188:780 189:1626 190:4211 191:427 192:5168 193:1818 194:1215 195:926 196:690 197:1547 198:2724 199:4867 200:3575 201:3155 202:1000 203:737 204:2150 205:1950 206:1547 207:1497 208:1432 209:1941 210:308 211:430 212:926 213:839 214:980 215:42 216:2526 217:412 218:520 219:19 220:26 221:333 222:32 223:762 End of report