IPv4 R&E Routing Table Report 20:15 GMT Wed 14 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: 263892 Prefixes after maximum aggregation (per Origin AS): 115523 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135207 Number of IPv4 prefixes with a valid ROA: 118634 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 145229 Total ASes present in the Internet Routing Table: 19783 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 17113 Origin ASes announcing only one prefix: 7757 Transit ASes present in the Internet Routing Table: 2670 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: 317 Number of instances of unregistered ASNs: 321 Number of 32-bit ASNs allocated by the RIRs: 46395 Number of 32-bit ASNs visible in the Routing Table: 7453 Prefixes from 32-bit ASNs in the Routing Table: 27950 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: 1554777053 Equivalent to 92 /8s, 172 /16s and 3 /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: 83249 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32591 Total APNIC prefixes after maximum aggregation: 7623 APNIC Deaggregation factor: 4.28 Prefixes being announced from the APNIC address blocks: 31041 Unique aggregates announced from the APNIC address blocks: 7929 APNIC Region origin ASes present in the Internet Routing Table: 1201 APNIC Prefixes per ASN: 25.85 APNIC Region origin ASes announcing only one prefix: 481 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: 547 Number of APNIC addresses announced to Internet: 167752556 Equivalent to 9 /8s, 255 /16s and 179 /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: 125449 Total ARIN prefixes after maximum aggregation: 65302 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122583 Unique aggregates announced from the ARIN address blocks: 66001 ARIN Region origin ASes present in the Internet Routing Table: 9338 ARIN Prefixes per ASN: 13.13 ARIN Region origin ASes announcing only one prefix: 3887 ARIN Region transit ASes present in the Internet Routing Table: 861 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: 2176 Number of ARIN addresses announced to Internet: 960776673 Equivalent to 57 /8s, 68 /16s and 73 /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: 48968 Total RIPE prefixes after maximum aggregation: 26543 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 50705 Unique aggregates announced from the RIPE address blocks: 36920 RIPE Region origin ASes present in the Internet Routing Table: 4614 RIPE Prefixes per ASN: 10.99 RIPE Region origin ASes announcing only one prefix: 1923 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 1878 Number of RIPE addresses announced to Internet: 281407312 Equivalent to 16 /8s, 197 /16s and 239 /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: 45486 Total LACNIC prefixes after maximum aggregation: 13476 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 44517 Unique aggregates announced from the LACNIC address blocks: 20052 LACNIC Region origin ASes present in the Internet Routing Table: 3516 LACNIC Prefixes per ASN: 12.66 LACNIC Region origin ASes announcing only one prefix: 1360 LACNIC Region transit ASes present in the Internet Routing Table: 702 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: 2701 Number of LACNIC addresses announced to Internet: 97958464 Equivalent to 5 /8s, 214 /16s and 186 /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: 11081 Total AfriNIC prefixes after maximum aggregation: 2365 AfriNIC Deaggregation factor: 4.69 Prefixes being announced from the AfriNIC address blocks: 14912 Unique aggregates announced from the AfriNIC address blocks: 4188 AfriNIC Region origin ASes present in the Internet Routing Table: 281 AfriNIC Prefixes per ASN: 53.07 AfriNIC Region origin ASes announcing only one prefix: 106 AfriNIC Region transit ASes present in the Internet Routing Table: 77 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: 151 Number of AfriNIC addresses announced to Internet: 46830592 Equivalent to 2 /8s, 202 /16s and 148 /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 10734 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1765 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 17561 859 54 403 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 602 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 512 848 137 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 13375 40827 4962 AMAZON-02, US 22773 3342 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2720 207 1663 USDA-1, US 36352 2528 208 1115 AS-COLOCROSSING, US 367 2438 2904 1174 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 1154 91 951 AKAMAI-ASN1, NL 3257 931 2077 748 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 816 1301 130 SAUDINETSTC-AS, SA 8452 706 1842 17 TE-AS TE-AS, EG 34984 689 76 412 TELLCOM-AS, TR 212238 626 44 552 CDNEXT, GB 8376 572 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 7946 2138 973 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 1189 371 22 Telefonica del Peru S.A.A., PE 26615 1028 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 1493 389 16 LINKdotNET-AS, EG 24835 1068 555 37 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 977 100 75 ORANGE-COTE-IVOIRE, CI 36935 720 142 180 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 552 82 3 KENET-AS, KE 37069 494 1046 15 MOBINIL, EG 36903 446 199 325 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 13375 40827 4962 AMAZON-02, US 9808 10734 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7946 2138 973 UNINET, MX 22773 3342 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2720 207 1663 USDA-1, US 36352 2528 208 1115 AS-COLOCROSSING, US 367 2438 2904 1174 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 10734 10639 CHINAMOBILE-CN China Mobile Communications Grou 8151 7946 6973 UNINET, MX 22773 3342 3178 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 1765 1579 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1493 1477 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 /11:42 /12:151 /13:208 /14:572 /15:1099 /16:7637 /17:3444 /18:4218 /19:7726 /20:12425 /21:15463 /22:27667 /23:27810 /24:155156 /25:62 /26:81 /27:34 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4156 7946 UNINET, MX 22773 2496 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2334 13375 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 1010 2528 AS-COLOCROSSING, US 19901 973 1258 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) ---------------------------------------------- 1:66 2:466 3:725 4:6 5:781 6:156 7:5 8:680 11:171 12:991 13:352 14:113 15:301 16:246 17:6 18:884 20:177 21:4 22:188 23:2588 24:640 27:21 29:19 31:479 32:9 33:1 34:10 35:133 36:1633 37:925 38:1978 39:553 40:62 41:961 42:213 43:196 44:34 45:3612 46:961 47:91 49:17 50:361 51:386 52:1387 54:309 55:1093 56:11 57:17 58:18 59:15 60:16 61:73 62:554 63:765 64:1985 65:1090 66:1582 67:958 68:396 69:1131 70:410 71:202 72:743 74:962 75:428 76:253 77:469 78:363 79:285 80:299 81:384 82:735 83:242 84:345 85:450 86:235 87:228 88:292 89:855 90:104 91:938 92:601 93:475 94:904 95:620 96:289 97:59 98:453 99:178 100:35 101:19 102:394 103:1195 104:1622 105:222 106:16 107:1523 108:549 109:378 110:35 111:1954 112:468 113:39 114:45 115:13 116:62 117:1052 118:30 119:121 120:1217 121:45 122:58 123:76 124:57 125:25 128:485 129:391 130:689 131:894 132:564 133:212 134:494 135:113 136:613 137:500 138:861 139:431 140:699 141:460 142:1023 143:681 144:437 145:135 146:687 147:492 148:872 149:769 150:352 151:647 152:479 153:125 154:1689 155:836 156:1423 157:366 158:544 159:689 160:823 161:666 162:956 163:358 164:722 165:768 166:789 167:631 168:1117 169:153 170:1613 171:125 172:1375 173:835 174:252 175:58 176:670 177:840 178:487 179:689 180:49 181:1815 182:29 183:931 184:448 185:3453 186:2035 187:1466 188:790 189:1793 190:4251 191:436 192:5161 193:1853 194:1223 195:939 196:705 197:1572 198:2735 199:4897 200:3622 201:3322 202:992 203:702 204:2163 205:1839 206:1543 207:1505 208:1441 209:1946 210:290 211:436 212:988 213:844 214:987 215:42 216:2528 217:425 218:520 219:19 220:26 221:340 222:31 223:793 End of report