IPv4 R&E Routing Table Report 20:15 GMT Wed 22 Apr, 2026 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: 291667 Prefixes after maximum aggregation (per Origin AS): 118530 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 148709 Number of IPv4 prefixes with a valid ROA: 150424 Number of IPv4 prefixes with an invalid ROA: 214 Number of IPv4 prefixes with no ROA: 141029 Total ASes present in the Internet Routing Table: 20189 Prefixes per ASN: 14.45 Origin-only ASes present in the Internet Routing Table: 17365 Origin ASes announcing only one prefix: 7766 Transit ASes present in the Internet Routing Table: 2824 Transit-only ASes present in the Internet Routing Table: 708 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 36 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 233 Number of instances of unregistered ASNs: 262 Number of 32-bit ASNs allocated by the RIRs: 49436 Number of 32-bit ASNs visible in the Routing Table: 8253 Prefixes from 32-bit ASNs in the Routing Table: 35092 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 111 Number of addresses announced to Internet: 1620729893 Equivalent to 96 /8s, 154 /16s and 96 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 94741 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42620 Total APNIC prefixes after maximum aggregation: 7835 APNIC Deaggregation factor: 5.44 Prefixes being announced from the APNIC address blocks: 39141 Unique aggregates announced from the APNIC address blocks: 7623 APNIC Region origin ASes present in the Internet Routing Table: 1188 APNIC Prefixes per ASN: 32.95 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 203 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 572 Number of APNIC addresses announced to Internet: 168497516 Equivalent to 10 /8s, 11 /16s and 17 /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: 128993 Total ARIN prefixes after maximum aggregation: 65772 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 126220 Unique aggregates announced from the ARIN address blocks: 71679 ARIN Region origin ASes present in the Internet Routing Table: 8948 ARIN Prefixes per ASN: 14.11 ARIN Region origin ASes announcing only one prefix: 3701 ARIN Region transit ASes present in the Internet Routing Table: 837 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2158 Number of ARIN addresses announced to Internet: 1018210345 Equivalent to 60 /8s, 176 /16s and 168 /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, 393216-404380 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: 52047 Total RIPE prefixes after maximum aggregation: 25823 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 55324 Unique aggregates announced from the RIPE address blocks: 38230 RIPE Region origin ASes present in the Internet Routing Table: 4495 RIPE Prefixes per ASN: 12.31 RIPE Region origin ASes announcing only one prefix: 1910 RIPE Region transit ASes present in the Internet Routing Table: 709 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1938 Number of RIPE addresses announced to Internet: 283477968 Equivalent to 16 /8s, 229 /16s and 135 /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: 58184 Total LACNIC prefixes after maximum aggregation: 16519 LACNIC Deaggregation factor: 3.52 Prefixes being announced from the LACNIC address blocks: 55597 Unique aggregates announced from the LACNIC address blocks: 24093 LACNIC Region origin ASes present in the Internet Routing Table: 4460 LACNIC Prefixes per ASN: 12.47 LACNIC Region origin ASes announcing only one prefix: 1570 LACNIC Region transit ASes present in the Internet Routing Table: 882 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3436 Number of LACNIC addresses announced to Internet: 106750912 Equivalent to 6 /8s, 92 /16s and 227 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 9590 Total AfriNIC prefixes after maximum aggregation: 2404 AfriNIC Deaggregation factor: 3.99 Prefixes being announced from the AfriNIC address blocks: 15274 Unique aggregates announced from the AfriNIC address blocks: 7000 AfriNIC Region origin ASes present in the Internet Routing Table: 270 AfriNIC Prefixes per ASN: 56.57 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 149 Number of AfriNIC addresses announced to Internet: 43716864 Equivalent to 2 /8s, 155 /16s and 17 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13653 8761 121 CHINAMOBILE-CN China Mobile Communication 56046 3423 887 189 CMNET-JIANGSU-AP China Mobile communicati 17561 2477 156 426 LCS-AS-AP LARUS Limited, HK 56041 1816 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1070 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 929 177 49 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 56045 914 481 56 CMNET-JIANGXI-AP China Mobile communicati 45102 815 1222 163 ALIBABA-CN-NET Alibaba US Technology Co., 24445 783 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14789 41291 5649 AMAZON-02 - Amazon.com, Inc., US 22773 4768 3099 360 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2381 194 1097 AS-COLOCROSSING - HostPapa, US 6167 2139 4335 565 CELLCO-PART - Verizon Business, US 11776 1895 257 221 ATLANTICBB-JOHNSTOWN - Breezeline, US 209 1623 4848 256 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 367 1598 1309 738 DNIC-ASBLK-00306-00371 - United States De 19901 1460 730 665 BRIGHTSPEED - Brightspeed, US 20057 1460 1001 113 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 4943 305 72 ALJAWWALSTC-AS, SA 25019 1487 1334 138 SAUDINETSTC-AS, SA 20940 1245 95 1015 AKAMAI-ASN1, NL 34984 1050 147 738 TELLCOM-AS, TR 8452 931 1841 19 TE-AS TE-AS, EG 3215 903 4816 310 France Telecom - Orange, FR 8376 664 53 28 UNASSIGNED 212238 631 45 561 CDNEXT, GB 35819 576 574 66 MOBILY-AS Etihad Etisalat Company Mobily, 51167 565 113 248 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 7367 1939 796 UNINET, MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 10620 1495 206 1115 Telmex Colombia S.A., CO 11664 1437 277 32 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1248 371 22 INTEGRATEL PERU S.A.A., PE 26615 1064 2391 99 TIM SA, BR 18881 985 1127 31 TELEFONICA BRASIL S.A, BR 27651 844 140 44 ENTEL CHILE S.A., CL 52468 680 43 243 UFINET PANAMA S.A., PA 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 24835 1517 552 27 RAYA-AS, EG 24863 776 124 379 LINKdotNET-AS, EG 37069 775 1100 11 MOBINIL, EG 36935 759 521 39 Vodafone-, EG 36914 554 82 3 KENET-AS, KE 36903 519 241 353 MT-MPLS, MA 29571 486 78 19 ORANGE-COTE-IVOIRE, CI 36992 405 911 254 ETISALAT-MISR, EG 2018 373 318 69 TENET-1, ZA 37693 347 599 43 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 14789 41291 5649 AMAZON-02 - Amazon.com, Inc., US 9808 13653 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 7367 1939 796 UNINET, MX 39891 4943 305 72 ALJAWWALSTC-AS, SA 22773 4768 3099 360 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3423 887 189 CMNET-JIANGSU-AP China Mobile communicati 749 3139 54728 2390 DNIC-AS-00749 - United States Department 17561 2477 156 426 LCS-AS-AP LARUS Limited, HK 36352 2381 194 1097 AS-COLOCROSSING - HostPapa, US 6167 2139 4335 565 CELLCO-PART - Verizon Business, 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 13653 13532 CHINAMOBILE-CN China Mobile Communications Grou 8151 7367 6571 UNINET, MX 39891 4943 4871 ALJAWWALSTC-AS, SA 22773 4768 4408 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3423 3234 CMNET-JIANGSU-AP China Mobile communications co 17561 2477 2051 LCS-AS-AP LARUS Limited, HK 11830 1937 1872 Instituto Costarricense de Electricidad y Telec 56041 1816 1737 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1895 1674 ATLANTICBB-JOHNSTOWN - Breezeline, US 56047 1715 1665 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 198550 UNALLOCATED 2.26.124.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.13.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.14.0/24 209693 OC-NETWORK, GB 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 23.172.88.0/24 Origin: 399756 TFC-BASE-001 - The Fiber.Company, LLC, Z 23.172.88.0/24 Transit: 7018 ATT-INTERNET4 - AT&T Enterprises, LLC, U 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 /11:55 /12:159 /13:218 /14:578 /15:1078 /16:7453 /17:3494 /18:4245 /19:7820 /20:13319 /21:16239 /22:28922 /23:30459 /24:177287 /25:64 /26:85 /27:46 /28:19 /29:7 /30:9 /31:0 /32:55 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4086 7367 UNINET, MX 39891 3628 4943 ALJAWWALSTC-AS, SA 22773 3051 4768 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2652 14789 AMAZON-02 - Amazon.com, Inc., US 11830 1647 1937 Instituto Costarricense de Electricidad y Telecom., CR 11664 1132 1437 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1030 2381 AS-COLOCROSSING - HostPapa, US 19901 1011 1460 BRIGHTSPEED - Brightspeed, US 6167 980 2139 CELLCO-PART - Verizon Business, US 209 945 1623 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:72 2:567 3:1008 4:1 5:1174 6:185 7:5 8:621 9:7 11:172 12:848 13:642 14:121 15:400 16:172 17:3 18:914 20:366 21:4 22:188 23:2910 24:790 27:19 28:1 29:19 31:459 32:13 34:9 35:177 36:3371 37:633 38:2635 39:868 40:55 41:1083 42:20 43:217 44:26 45:4366 46:900 47:186 48:67 49:24 50:478 51:530 52:1123 54:283 55:1207 56:11 57:26 58:18 59:27 60:14 61:54 62:627 63:685 64:2225 65:1006 66:2470 67:1218 68:496 69:1224 70:420 71:141 72:758 74:1007 75:263 76:219 77:527 78:565 79:246 80:345 81:415 82:819 83:210 84:371 85:635 86:243 87:234 88:284 89:604 90:119 91:932 92:652 93:935 94:974 95:1266 96:271 97:46 98:468 99:299 100:39 101:28 102:383 103:1103 104:1645 105:147 106:7 107:1773 108:525 109:373 110:62 111:2809 112:1324 113:39 114:33 115:9 116:54 117:1646 118:56 119:75 120:2037 121:36 122:48 123:106 124:60 125:19 126:1 128:509 129:383 130:717 131:1270 132:544 133:214 134:535 135:134 136:717 137:594 138:1071 139:456 140:749 141:452 142:1541 143:881 144:509 145:165 146:668 147:497 148:1018 149:776 150:218 151:930 152:830 153:388 154:2650 155:993 156:1837 157:423 158:680 159:886 160:688 161:698 162:994 163:433 164:674 165:640 166:552 167:730 168:1440 169:162 170:1867 171:104 172:1410 173:821 174:355 175:121 176:747 177:1112 178:653 179:890 180:37 181:2649 182:28 183:1720 184:454 185:3304 186:3617 187:1732 188:997 189:1997 190:6254 191:559 192:5125 193:1700 194:1105 195:941 196:674 197:685 198:2642 199:2481 200:4443 201:3585 202:1012 203:708 204:2203 205:1783 206:1492 207:1714 208:1638 209:2025 210:350 211:514 212:1102 213:878 214:958 215:36 216:2532 217:554 218:670 219:18 220:27 221:536 222:29 223:1708 End of report