IPv4 R&E Routing Table Report 23:05 GMT Tue 18 Apr, 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: 911280 Prefixes after maximum aggregation (per Origin AS): 346657 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 448233 Number of IPv4 prefixes with a valid ROA: 389916 Number of IPv4 prefixes with an invalid ROA: 1931 Number of IPv4 prefixes with no ROA: 519433 Total ASes present in the Internet Routing Table: 74150 Prefixes per ASN: 12.29 Origin-only ASes present in the Internet Routing Table: 63674 Origin ASes announcing only one prefix: 26164 Transit ASes present in the Internet Routing Table: 10476 Transit-only ASes present in the Internet Routing Table: 428 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1393 Number of instances of unregistered ASNs: 1393 Number of 32-bit ASNs allocated by the RIRs: 41668 Number of 32-bit ASNs visible in the Routing Table: 34416 Prefixes from 32-bit ASNs in the Routing Table: 169633 Number of bogon 32-bit ASNs visible in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 929 Number of addresses announced to Internet: 3060611584 Equivalent to 182 /8s, 109 /16s and 58 /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: 306160 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236046 Total APNIC prefixes after maximum aggregation: 68357 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 230396 Unique aggregates announced from the APNIC address blocks: 97685 APNIC Region origin ASes present in the Internet Routing Table: 13294 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 3902 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8657 Number of APNIC addresses announced to Internet: 773026816 Equivalent to 46 /8s, 19 /16s and 116 /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: 267510 Total ARIN prefixes after maximum aggregation: 121573 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270008 Unique aggregates announced from the ARIN address blocks: 130758 ARIN Region origin ASes present in the Internet Routing Table: 19026 ARIN Prefixes per ASN: 14.19 ARIN Region origin ASes announcing only one prefix: 6965 ARIN Region transit ASes present in the Internet Routing Table: 1893 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4769 Number of ARIN addresses announced to Internet: 1284644096 Equivalent to 76 /8s, 146 /16s and 29 /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: 259197 Total RIPE prefixes after maximum aggregation: 121922 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 255114 Unique aggregates announced from the RIPE address blocks: 157613 RIPE Region origin ASes present in the Internet Routing Table: 28288 RIPE Prefixes per ASN: 9.02 RIPE Region origin ASes announcing only one prefix: 12041 RIPE Region transit ASes present in the Internet Routing Table: 3977 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11131 Number of RIPE addresses announced to Internet: 717835776 Equivalent to 42 /8s, 201 /16s and 78 /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: 117632 Total LACNIC prefixes after maximum aggregation: 28186 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116902 Unique aggregates announced from the LACNIC address blocks: 49215 LACNIC Region origin ASes present in the Internet Routing Table: 10981 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2289 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176662528 Equivalent to 10 /8s, 135 /16s and 168 /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: 29502 Total AfriNIC prefixes after maximum aggregation: 5795 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37931 Unique aggregates announced from the AfriNIC address blocks: 12305 AfriNIC Region origin ASes present in the Internet Routing Table: 1735 AfriNIC Prefixes per ASN: 21.86 AfriNIC Region origin ASes announcing only one prefix: 605 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1082 Number of AfriNIC addresses announced to Internet: 107728896 Equivalent to 6 /8s, 107 /16s and 208 /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 9459 8704 36 CHINAMOBILE-CN China Mobile Communicati 7545 5727 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3560 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3389 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2938 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2379 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2303 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2174 439 212 TATACOMM-AS TATA Communications formerl 45090 2148 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 8216 10772 2927 AMAZON-02, US 11492 4543 301 602 CABLEONE, US 7155 3969 279 48 VIASAT-SP-BACKBONE, US 22773 3592 3057 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3146 1569 2339 AKAMAI-AS, US 749 3071 53111 2323 DNIC-AS-00749, US 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2567 24117 1562 ATT-INTERNET4, US 30036 2502 361 471 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 7222 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4064 3399 163 AKAMAI-ASN1, NL 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2893 2292 909 ROSTELECOM-AS, RU 9009 2660 249 1385 M247, RO 34984 2271 359 611 TELLCOM-AS, TR 6849 2018 307 18 UKRTELNET, UA 58224 1851 950 543 TCI, IR 13188 1606 100 26 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 11263 3343 584 Uninet S.A. de C.V., MX 10620 3501 507 852 Telmex Colombia S.A., CO 13999 2316 355 613 Mega Cable, S.A. de C.V., MX 11830 2263 369 64 Instituto Costarricense de Electricidad 28573 1333 2324 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1133 370 22 Telefonica del Peru S.A.A., PE 11664 1101 180 448 Techtel LMDS Comunicaciones Interactiva 26615 1032 2498 45 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 24863 1578 393 19 LINKdotNET-AS, EG 24835 1541 533 30 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1024 67 45 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 535 54 47 WANANCHI-, KE 24757 488 73 5 EthioNet-AS, ET 37342 479 32 1 MOVITEL, MZ 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 11263 3343 584 Uninet S.A. de C.V., MX 9808 9459 8704 36 CHINAMOBILE-CN China Mobile Communicati 16509 8216 10772 2927 AMAZON-02, US 12479 7222 1705 149 UNI2-AS, ES 7545 5727 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4543 301 602 CABLEONE, US 20940 4064 3399 163 AKAMAI-ASN1, NL 7155 3969 279 48 VIASAT-SP-BACKBONE, US 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9459 9423 CHINAMOBILE-CN China Mobile Communications Grou 12479 7222 7073 UNI2-AS, ES 16509 8216 5289 AMAZON-02, US 7545 5727 5039 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4543 3941 CABLEONE, US 7155 3969 3921 VIASAT-SP-BACKBONE, US 20940 4064 3901 AKAMAI-ASN1, NL 8551 3892 3855 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3675 3654 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 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 /9:14 /10:38 /11:103 /12:299 /13:575 /14:1196 /15:2084 /16:13415 /17:8158 /18:13687 /19:24773 /20:43039 /21:50878 /22:108958 /23:97274 /24:546764 /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 6282 7222 UNI2-AS, ES 8151 5216 11263 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3452 4543 CABLEONE, US 8551 3364 3892 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3039 3969 VIASAT-SP-BACKBONE, US 22773 2660 3592 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2159 2502 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2055 3501 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1671 2:1263 3:175 4:5 5:4487 6:127 7:6 8:1512 9:1 11:172 12:1547 13:389 14:2314 15:299 16:183 17:370 18:411 20:256 21:4 22:188 23:6233 24:2571 25:6 27:2489 29:19 31:2521 32:86 34:11 35:104 36:1944 37:4651 38:4433 39:819 40:151 41:3971 42:975 43:2320 44:308 45:16501 46:4242 47:356 49:1733 50:1823 51:571 52:1588 54:390 55:859 56:8 57:113 58:1683 59:1103 60:973 61:2475 62:2648 63:1920 64:5672 65:2317 66:4925 67:3005 68:1374 69:4140 70:1246 71:672 72:2977 74:2615 75:1465 76:607 77:2414 78:1849 79:3171 80:2100 81:1737 82:1482 83:1271 84:1516 85:2996 86:762 87:1985 88:1227 89:3616 90:610 91:7701 92:2059 93:2619 94:3595 95:3993 96:1326 97:336 98:1155 99:744 100:72 101:1301 102:2693 103:31210 104:4627 105:484 106:897 107:2524 108:1024 109:4413 110:2078 111:3092 112:2027 113:1498 114:1640 115:2007 116:1907 117:2559 118:2274 119:2006 120:1766 121:1044 122:2605 123:2132 124:1574 125:2467 128:1240 129:1046 130:986 131:1981 132:847 133:422 134:1899 135:305 136:878 137:943 138:2554 139:1555 140:1233 141:1458 142:1425 143:1496 144:1157 145:347 146:1929 147:1573 148:2312 149:2076 150:874 151:1151 152:1932 153:487 154:4434 155:1431 156:1788 157:1309 158:1052 159:2290 160:2534 161:1516 162:3507 163:1511 164:1608 165:1734 166:1017 167:1740 168:3851 169:935 170:4597 171:879 172:3560 173:2935 174:1069 175:1159 176:3669 177:4556 178:3586 179:2142 180:2458 181:3431 182:3332 183:1932 184:2360 185:20173 186:4757 187:3962 188:4100 189:3542 190:9185 191:1435 192:10900 193:8853 194:7313 195:5138 196:3172 197:2381 198:5872 199:6078 200:7874 201:5853 202:10311 203:10193 204:4585 205:3534 206:4084 207:3390 208:4063 209:4837 210:4169 211:2392 212:4119 213:3558 214:1084 215:59 216:6636 217:2699 218:1259 219:406 220:1762 221:969 222:709 223:2152 End of report