IPv4 R&E Routing Table Report 23:05 GMT Sun 08 Jan, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 902554 Prefixes after maximum aggregation (per Origin AS): 344128 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 444795 Number of IPv4 prefixes with a valid ROA: 367163 Number of IPv4 prefixes with an invalid ROA: 1567 Number of IPv4 prefixes with no ROA: 533824 Total ASes present in the Internet Routing Table: 73839 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63415 Origin ASes announcing only one prefix: 26119 Transit ASes present in the Internet Routing Table: 10424 Transit-only ASes present in the Internet Routing Table: 424 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 986 Number of instances of unregistered ASNs: 995 Number of 32-bit ASNs allocated by the RIRs: 41043 Number of 32-bit ASNs visible in the Routing Table: 33928 Prefixes from 32-bit ASNs in the Routing Table: 165371 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 499 Number of addresses announced to Internet: 3062676224 Equivalent to 182 /8s, 140 /16s and 187 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 303604 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233337 Total APNIC prefixes after maximum aggregation: 67995 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228174 Unique aggregates announced from the APNIC address blocks: 97515 APNIC Region origin ASes present in the Internet Routing Table: 13134 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3826 APNIC Region transit ASes present in the Internet Routing Table: 1765 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8455 Number of APNIC addresses announced to Internet: 773312256 Equivalent to 46 /8s, 23 /16s and 207 /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, 131072-151865 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: 266453 Total ARIN prefixes after maximum aggregation: 121303 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268045 Unique aggregates announced from the ARIN address blocks: 129649 ARIN Region origin ASes present in the Internet Routing Table: 19001 ARIN Prefixes per ASN: 14.11 ARIN Region origin ASes announcing only one prefix: 6996 ARIN Region transit ASes present in the Internet Routing Table: 1884 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4704 Number of ARIN addresses announced to Internet: 1285681664 Equivalent to 76 /8s, 161 /16s and 242 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 255713 Total RIPE prefixes after maximum aggregation: 120141 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252434 Unique aggregates announced from the RIPE address blocks: 156210 RIPE Region origin ASes present in the Internet Routing Table: 28194 RIPE Prefixes per ASN: 8.95 RIPE Region origin ASes announcing only one prefix: 12031 RIPE Region transit ASes present in the Internet Routing Table: 3998 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10955 Number of RIPE addresses announced to Internet: 719414016 Equivalent to 42 /8s, 225 /16s and 99 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117318 Total LACNIC prefixes after maximum aggregation: 28247 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116552 Unique aggregates announced from the LACNIC address blocks: 48927 LACNIC Region origin ASes present in the Internet Routing Table: 10994 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2271 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8763 Number of LACNIC addresses announced to Internet: 175969024 Equivalent to 10 /8s, 125 /16s and 19 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 28747 Total AfriNIC prefixes after maximum aggregation: 5700 AfriNIC Deaggregation factor: 5.04 Prefixes being announced from the AfriNIC address blocks: 36850 Unique aggregates announced from the AfriNIC address blocks: 12089 AfriNIC Region origin ASes present in the Internet Routing Table: 1709 AfriNIC Prefixes per ASN: 21.56 AfriNIC Region origin ASes announcing only one prefix: 594 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1051 Number of AfriNIC addresses announced to Internet: 108008448 Equivalent to 6 /8s, 112 /16s and 20 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9261 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5941 787 701 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3630 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3521 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3108 1874 95 VNPT-AS-VN VNPT Corp, VN 9498 2688 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2358 849 436 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2283 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 214 TATACOMM-AS TATA Communications formerl 45090 2144 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7779 10639 2909 AMAZON-02, US 11492 4549 301 565 CABLEONE, US 7155 3894 265 33 VIASAT-SP-BACKBONE, US 22773 3687 3063 319 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3520 1320 63 SHAW, CA 16625 3469 1797 2506 AKAMAI-AS, US 749 3025 50576 2292 DNIC-AS-00749, US 7018 2608 24131 1580 ATT-INTERNET4, US 396982 2574 3493 369 GOOGLE-CLOUD-PLATFORM, US 30036 2572 369 359 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6956 1706 146 UNI2-AS, ES 39891 4556 268 59 ALJAWWALSTC-AS, SA 20940 4051 3399 175 AKAMAI-ASN1, NL 8551 3913 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2646 252 1354 M247, RO 34984 2255 358 611 TELLCOM-AS, TR 6849 2194 339 20 UKRTELNET, UA 58224 1804 942 531 TCI, IR 13188 1610 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10943 3331 590 Uninet S.A. de C.V., MX 10620 3466 507 852 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2201 361 591 Mega Cable, S.A. de C.V., MX 28573 1352 2328 258 Claro NXT Telecomunicacoes Ltda, BR 6503 1296 339 518 Axtel, S.A.B. de C.V., MX 3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1150 370 22 Telefonica del Peru S.A.A., PE 11664 1135 186 467 Techtel LMDS Comunicaciones Interactiva 26615 991 2466 43 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1538 533 30 RAYA-AS, EG 24863 1458 393 21 LINKdotNET-AS, EG 36992 1333 1517 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1013 67 43 ORANGE-COTE-IVOIRE, CI 36935 882 520 42 Vodafone-, EG 6713 611 1861 34 IAM-AS, MA 15399 528 53 45 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 2018 370 319 72 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10943 3331 590 Uninet S.A. de C.V., MX 9808 9261 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7779 10639 2909 AMAZON-02, US 12479 6956 1706 146 UNI2-AS, ES 7545 5941 787 701 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4556 268 59 ALJAWWALSTC-AS, SA 11492 4549 301 565 CABLEONE, US 20940 4051 3399 175 AKAMAI-ASN1, NL 8551 3913 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3894 265 33 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9261 9214 CHINAMOBILE-CN China Mobile Communications Grou 12479 6956 6810 UNI2-AS, ES 7545 5941 5240 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7779 4870 AMAZON-02, US 39891 4556 4497 ALJAWWALSTC-AS, SA 11492 4549 3984 CABLEONE, US 20940 4051 3876 AKAMAI-ASN1, NL 8551 3913 3875 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3894 3861 VIASAT-SP-BACKBONE, US 7552 3630 3609 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:38 /11:101 /12:295 /13:580 /14:1198 /15:2078 /16:13482 /17:8223 /18:13784 /19:24816 /20:42720 /21:50845 /22:108758 /23:96598 /24:539000 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6003 6956 UNI2-AS, ES 8151 4962 10943 Uninet S.A. de C.V., MX 39891 3547 4556 ALJAWWALSTC-AS, SA 11492 3456 4549 CABLEONE, US 8551 3378 3913 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3328 3520 SHAW, CA 7155 2983 3894 VIASAT-SP-BACKBONE, US 22773 2725 3687 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2230 2572 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2045 2194 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1623 2:1231 3:168 4:5 5:4108 6:110 7:5 8:1531 9:1 11:172 12:1596 13:377 14:2321 15:284 16:76 17:369 18:414 20:243 21:4 22:188 23:6049 24:2454 25:4 27:2707 29:19 31:2494 32:103 34:8 35:95 36:1861 37:4588 38:3991 39:827 40:144 41:3918 42:1041 43:2287 44:302 45:16450 46:4198 47:374 49:1710 50:1932 51:378 52:1546 54:396 55:866 56:8 57:79 58:1677 59:1104 60:1007 61:2419 62:2629 63:1934 64:5607 65:2318 66:4887 67:3039 68:1333 69:4091 70:1253 71:655 72:2981 74:2584 75:1465 76:594 77:2361 78:1833 79:3161 80:2069 81:1687 82:1482 83:1228 84:1497 85:2961 86:749 87:1926 88:1198 89:3546 90:586 91:7643 92:1986 93:2567 94:3522 95:3912 96:1315 97:344 98:1161 99:739 100:75 101:1292 102:2524 103:30691 104:4595 105:484 106:843 107:2533 108:908 109:4378 110:2043 111:3275 112:2025 113:1466 114:1602 115:2020 116:1864 117:2512 118:2289 119:1862 120:1718 121:1041 122:2577 123:2135 124:1553 125:2263 128:1237 129:1048 130:961 131:2004 132:826 133:405 134:1897 135:297 136:891 137:921 138:2584 139:1515 140:1029 141:1487 142:1409 143:1439 144:1187 145:350 146:1883 147:1538 148:2263 149:1860 150:859 151:1136 152:1966 153:477 154:3871 155:1405 156:1645 157:1296 158:1043 159:2253 160:2566 161:1432 162:3528 163:1478 164:1677 165:1664 166:823 167:1752 168:3848 169:916 170:4570 171:887 172:3496 173:3054 174:1026 175:1159 176:3705 177:4744 178:3544 179:2154 180:2411 181:3375 182:3243 183:1937 184:2347 185:19991 186:4644 187:3908 188:4072 189:3427 190:9026 191:1464 192:10949 193:8827 194:7201 195:5088 196:3063 197:2391 198:5924 199:6070 200:7642 201:5877 202:10211 203:10014 204:4590 205:3502 206:3783 207:3345 208:4086 209:4775 210:4154 211:2385 212:4054 213:3533 214:1102 215:55 216:6578 217:2633 218:1253 219:408 220:1779 221:964 222:662 223:1979 End of report