IPv4 R&E Routing Table Report 20:15 GMT Mon 19 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: 263932 Prefixes after maximum aggregation (per Origin AS): 115665 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 134720 Number of IPv4 prefixes with a valid ROA: 119166 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 144737 Total ASes present in the Internet Routing Table: 19795 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 17105 Origin ASes announcing only one prefix: 7776 Transit ASes present in the Internet Routing Table: 2690 Transit-only ASes present in the Internet Routing Table: 726 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: 46452 Number of 32-bit ASNs visible in the Routing Table: 7462 Prefixes from 32-bit ASNs in the Routing Table: 27848 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: 117 Number of addresses announced to Internet: 1554407901 Equivalent to 92 /8s, 166 /16s and 97 /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: 83151 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32448 Total APNIC prefixes after maximum aggregation: 7563 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 30853 Unique aggregates announced from the APNIC address blocks: 7654 APNIC Region origin ASes present in the Internet Routing Table: 1204 APNIC Prefixes per ASN: 25.63 APNIC Region origin ASes announcing only one prefix: 474 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: 553 Number of APNIC addresses announced to Internet: 167720812 Equivalent to 9 /8s, 255 /16s and 55 /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: 125800 Total ARIN prefixes after maximum aggregation: 65505 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122948 Unique aggregates announced from the ARIN address blocks: 65941 ARIN Region origin ASes present in the Internet Routing Table: 9329 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3888 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: 2185 Number of ARIN addresses announced to Internet: 960679137 Equivalent to 57 /8s, 66 /16s and 204 /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: 49619 Total RIPE prefixes after maximum aggregation: 26792 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51294 Unique aggregates announced from the RIPE address blocks: 37234 RIPE Region origin ASes present in the Internet Routing Table: 4609 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1936 RIPE Region transit ASes present in the Internet Routing Table: 696 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: 1880 Number of RIPE addresses announced to Internet: 281772880 Equivalent to 16 /8s, 203 /16s and 131 /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: 44629 Total LACNIC prefixes after maximum aggregation: 13238 LACNIC Deaggregation factor: 3.37 Prefixes being announced from the LACNIC address blocks: 43682 Unique aggregates announced from the LACNIC address blocks: 19550 LACNIC Region origin ASes present in the Internet Routing Table: 3513 LACNIC Prefixes per ASN: 12.43 LACNIC Region origin ASes announcing only one prefix: 1367 LACNIC Region transit ASes present in the Internet Routing Table: 711 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: 2691 Number of LACNIC addresses announced to Internet: 97466688 Equivalent to 5 /8s, 207 /16s and 57 /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: 11122 Total AfriNIC prefixes after maximum aggregation: 2354 AfriNIC Deaggregation factor: 4.72 Prefixes being announced from the AfriNIC address blocks: 15038 Unique aggregates announced from the AfriNIC address blocks: 4226 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 52.58 AfriNIC Region origin ASes announcing only one prefix: 111 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: 153 Number of AfriNIC addresses announced to Internet: 46717184 Equivalent to 2 /8s, 200 /16s and 217 /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 10808 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1774 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 849 54 400 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 604 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 515 848 138 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 13409 40824 5069 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2731 208 1674 USDA-1, US 36352 2561 210 1136 AS-COLOCROSSING, US 367 2444 2909 1173 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 ATT-INTERNET4, US 11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1860 3758 488 CELLCO-PART, US 209 1661 4889 271 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 1175 92 962 AKAMAI-ASN1, NL 3257 931 2076 748 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 816 1301 129 SAUDINETSTC-AS, SA 8452 778 1841 16 TE-AS TE-AS, EG 34984 685 76 408 TELLCOM-AS, TR 212238 622 44 548 CDNEXT, GB 8376 569 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 7187 2024 836 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 1198 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 646 77 298 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 29571 1217 101 68 ORANGE-COTE-IVOIRE, CI 24835 1024 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 586 125 165 Vodafone-, EG 36914 553 82 3 KENET-AS, KE 36903 484 218 343 MT-MPLS, MA 37069 469 1046 15 MOBINIL, EG 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 13409 40824 5069 AMAZON-02, US 9808 10808 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7187 2024 836 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2731 208 1674 USDA-1, US 36352 2561 210 1136 AS-COLOCROSSING, US 367 2444 2909 1173 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 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 10808 10713 CHINAMOBILE-CN China Mobile Communications Grou 8151 7187 6351 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 1896 1680 ATLANTICBB-JOHNSTOWN, US 56046 1774 1588 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 /13:209 /14:573 /15:1100 /16:7639 /17:3450 /18:4215 /19:7704 /20:12399 /21:15256 /22:27506 /23:27760 /24:155655 /25:62 /26:81 /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 3790 7187 UNINET, MX 22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 13409 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 1040 2561 AS-COLOCROSSING, US 19901 978 1264 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1896 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 2:478 3:764 4:5 5:796 6:156 7:5 8:681 11:171 12:997 13:359 14:114 15:301 16:246 17:6 18:883 20:180 21:4 22:188 23:2595 24:640 27:23 29:19 31:514 32:9 33:1 34:10 35:133 36:1714 37:951 38:2049 39:554 40:62 41:967 42:21 43:205 44:36 45:3593 46:958 47:92 49:18 50:363 51:386 52:1388 54:304 55:1091 56:11 57:18 58:17 59:15 60:16 61:74 62:554 63:752 64:1929 65:1087 66:1547 67:960 68:397 69:1121 70:414 71:203 72:732 74:949 75:427 76:248 77:479 78:350 79:284 80:316 81:369 82:743 83:231 84:341 85:430 86:232 87:230 88:292 89:865 90:104 91:932 92:612 93:488 94:934 95:683 96:288 97:59 98:455 99:179 100:35 101:22 102:374 103:1212 104:1629 105:215 106:16 107:1525 108:545 109:394 110:41 111:1962 112:460 113:39 114:40 115:22 116:62 117:1047 118:38 119:124 120:1221 121:44 122:58 123:78 124:57 125:26 128:496 129:392 130:690 131:905 132:563 133:211 134:495 135:113 136:608 137:514 138:859 139:431 140:700 141:462 142:1022 143:685 144:433 145:135 146:673 147:492 148:878 149:772 150:352 151:644 152:494 153:129 154:1765 155:862 156:1449 157:388 158:552 159:728 160:940 161:667 162:982 163:361 164:712 165:775 166:785 167:631 168:1112 169:153 170:1628 171:120 172:1368 173:837 174:252 175:62 176:789 177:819 178:510 179:694 180:49 181:1824 182:29 183:933 184:448 185:3493 186:2046 187:1436 188:816 189:1621 190:4231 191:449 192:5176 193:1882 194:1236 195:955 196:713 197:1577 198:2731 199:4909 200:3561 201:3200 202:994 203:727 204:2146 205:1944 206:1546 207:1519 208:1466 209:1938 210:290 211:436 212:1038 213:794 214:983 215:42 216:2531 217:425 218:520 219:19 220:28 221:339 222:31 223:793 End of report