IPv4 R&E Routing Table Report 20:15 GMT Wed 09 Jul, 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: 276352 Prefixes after maximum aggregation (per Origin AS): 120399 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143328 Number of IPv4 prefixes with a valid ROA: 129591 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 146719 Total ASes present in the Internet Routing Table: 20830 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 17951 Origin ASes announcing only one prefix: 8043 Transit ASes present in the Internet Routing Table: 2879 Transit-only ASes present in the Internet Routing Table: 725 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 345 Number of instances of unregistered ASNs: 377 Number of 32-bit ASNs allocated by the RIRs: 46764 Number of 32-bit ASNs visible in the Routing Table: 8297 Prefixes from 32-bit ASNs in the Routing Table: 32629 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 85 Number of addresses announced to Internet: 1639422725 Equivalent to 97 /8s, 183 /16s and 155 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89020 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33932 Total APNIC prefixes after maximum aggregation: 7444 APNIC Deaggregation factor: 4.56 Prefixes being announced from the APNIC address blocks: 32821 Unique aggregates announced from the APNIC address blocks: 7771 APNIC Region origin ASes present in the Internet Routing Table: 1243 APNIC Prefixes per ASN: 26.40 APNIC Region origin ASes announcing only one prefix: 500 APNIC Region transit ASes present in the Internet Routing Table: 201 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 594 Number of APNIC addresses announced to Internet: 173077612 Equivalent to 10 /8s, 80 /16s and 244 /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: 126236 Total ARIN prefixes after maximum aggregation: 66337 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124613 Unique aggregates announced from the ARIN address blocks: 67682 ARIN Region origin ASes present in the Internet Routing Table: 9317 ARIN Prefixes per ASN: 13.37 ARIN Region origin ASes announcing only one prefix: 3861 ARIN Region transit ASes present in the Internet Routing Table: 880 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: 2191 Number of ARIN addresses announced to Internet: 1028163337 Equivalent to 61 /8s, 72 /16s and 135 /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: 50467 Total RIPE prefixes after maximum aggregation: 27374 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 52083 Unique aggregates announced from the RIPE address blocks: 38156 RIPE Region origin ASes present in the Internet Routing Table: 4651 RIPE Prefixes per ASN: 11.20 RIPE Region origin ASes announcing only one prefix: 1959 RIPE Region transit ASes present in the Internet Routing Table: 695 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1906 Number of RIPE addresses announced to Internet: 287355728 Equivalent to 17 /8s, 32 /16s and 179 /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: 56719 Total LACNIC prefixes after maximum aggregation: 16528 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 55014 Unique aggregates announced from the LACNIC address blocks: 24875 LACNIC Region origin ASes present in the Internet Routing Table: 4472 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1613 LACNIC Region transit ASes present in the Internet Routing Table: 887 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3453 Number of LACNIC addresses announced to Internet: 109428800 Equivalent to 6 /8s, 133 /16s and 192 /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: 8653 Total AfriNIC prefixes after maximum aggregation: 2459 AfriNIC Deaggregation factor: 3.52 Prefixes being announced from the AfriNIC address blocks: 11736 Unique aggregates announced from the AfriNIC address blocks: 4761 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 40.05 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153 Number of AfriNIC addresses announced to Internet: 41288960 Equivalent to 2 /8s, 118 /16s and 5 /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 11573 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2522 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13623 40958 5247 AMAZON-02, US 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2843 216 1732 USDA-1, US 36352 2563 210 1140 AS-COLOCROSSING, US 367 2510 3151 1180 DNIC-ASBLK-00306-00371, US 6167 1926 4011 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1774 22857 1322 ATT-INTERNET4, US 209 1657 4889 270 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 1163 90 949 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 34984 924 116 599 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 830 1841 16 TE-AS TE-AS, EG 25019 803 1301 130 SAUDINETSTC-AS, SA 212238 660 47 584 CDNEXT, GB 8376 574 52 23 Jordan Data Communications, JO 51167 564 113 248 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 7474 2015 908 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1711 248 1231 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1020 2487 55 TIM SA, BR 18881 890 1127 31 TELEFONICA BRASIL S.A, BR 11172 722 124 69 Alestra, S. de R.L. de C.V., MX 27651 648 91 45 ENTEL CHILE S.A., CL 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 24835 614 372 58 RAYA-AS, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 37069 528 1112 11 MOBINIL, EG 36935 503 521 40 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 24863 377 140 207 LINKdotNET-AS, EG 2018 375 318 69 TENET-1, ZA 37693 343 599 42 TUNISIANA, TN 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 13623 40958 5247 AMAZON-02, US 9808 11573 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7474 2015 908 UNINET, MX 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2843 216 1732 USDA-1, US 36352 2563 210 1140 AS-COLOCROSSING, US 56046 2522 811 188 CMNET-JIANGSU-AP China Mobile communicati 367 2510 3151 1180 DNIC-ASBLK-00306-00371, US 11830 1987 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 11573 11460 CHINAMOBILE-CN China Mobile Communications Grou 8151 7474 6566 UNINET, MX 22773 3338 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2522 2334 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1483 1433 CMNET-HUNAN-AP China Mobile communications corp 36352 2563 1423 AS-COLOCROSSING, US 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 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, 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 /8:14 /9:11 /10:31 /11:51 /12:159 /13:214 /14:586 /15:1107 /16:7707 /17:3494 /18:4174 /19:7779 /20:12757 /21:15865 /22:27542 /23:29266 /24:165364 /25:64 /26:81 /27:37 /28:16 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4008 7474 UNINET, MX 22773 2492 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 13623 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2563 AS-COLOCROSSING, US 19901 1021 1337 BRSPD-PUBLIC, US 10620 993 1711 Telmex Colombia S.A., CO 209 962 1657 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:30 2:430 3:835 4:5 5:795 6:149 7:5 8:654 11:171 12:973 13:390 14:114 15:306 16:247 17:3 18:890 20:188 21:4 22:188 23:2638 24:684 27:26 29:19 31:526 32:18 33:1 34:10 35:180 36:2295 37:751 38:2566 39:552 40:78 41:868 42:21 43:230 44:28 45:4237 46:1008 47:105 49:21 50:353 51:388 52:1383 54:315 55:1107 56:11 57:24 58:16 59:36 60:33 61:78 62:543 63:785 64:1916 65:1147 66:1600 67:1099 68:373 69:1254 70:457 71:192 72:711 74:964 75:320 76:261 77:493 78:368 79:235 80:302 81:378 82:711 83:219 84:343 85:470 86:245 87:227 88:302 89:715 90:106 91:956 92:687 93:482 94:971 95:675 96:289 97:53 98:505 99:193 100:42 101:18 102:383 103:1299 104:1675 105:204 106:40 107:1544 108:538 109:455 110:43 111:1937 112:611 113:35 114:54 115:27 116:62 117:1081 118:61 119:82 120:1412 121:50 122:69 123:127 124:69 125:25 126:1 128:512 129:396 130:672 131:1024 132:559 133:212 134:476 135:127 136:674 137:535 138:1005 139:442 140:734 141:366 142:1017 143:804 144:428 145:123 146:686 147:517 148:988 149:756 150:181 151:813 152:609 153:144 154:1246 155:861 156:1013 157:400 158:563 159:747 160:823 161:660 162:1078 163:442 164:726 165:571 166:805 167:696 168:1563 169:162 170:1754 171:108 172:1356 173:810 174:363 175:88 176:812 177:1078 178:623 179:889 180:43 181:2267 182:40 183:1039 184:461 185:3445 186:2830 187:1700 188:842 189:1987 190:6082 191:529 192:5248 193:1863 194:1257 195:952 196:720 197:1063 198:2740 199:5014 200:4680 201:3809 202:968 203:725 204:2232 205:1844 206:1580 207:1626 208:1585 209:2023 210:349 211:457 212:1016 213:772 214:940 215:35 216:2572 217:448 218:540 219:19 220:27 221:440 222:24 223:1020 End of report