IPv4 R&E Routing Table Report 23:05 GMT Tue 04 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: 909860 Prefixes after maximum aggregation (per Origin AS): 346253 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447330 Number of IPv4 prefixes with a valid ROA: 382349 Number of IPv4 prefixes with an invalid ROA: 1636 Number of IPv4 prefixes with no ROA: 525875 Total ASes present in the Internet Routing Table: 74104 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63640 Origin ASes announcing only one prefix: 26185 Transit ASes present in the Internet Routing Table: 10464 Transit-only ASes present in the Internet Routing Table: 439 Paths with bogon ASNs present in the IPv4 Routing Table: 53 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1099 Number of instances of unregistered ASNs: 1099 Number of 32-bit ASNs allocated by the RIRs: 41592 Number of 32-bit ASNs visible in the Routing Table: 34357 Prefixes from 32-bit ASNs in the Routing Table: 168570 Number of bogon 32-bit ASNs visible in the Routing Table: 49 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 500 Number of addresses announced to Internet: 3060807168 Equivalent to 182 /8s, 112 /16s and 54 /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: 305732 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236225 Total APNIC prefixes after maximum aggregation: 68327 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230919 Unique aggregates announced from the APNIC address blocks: 97958 APNIC Region origin ASes present in the Internet Routing Table: 13303 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3917 APNIC Region transit ASes present in the Internet Routing Table: 1792 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: 8654 Number of APNIC addresses announced to Internet: 773164288 Equivalent to 46 /8s, 21 /16s and 141 /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: 267244 Total ARIN prefixes after maximum aggregation: 121450 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269689 Unique aggregates announced from the ARIN address blocks: 130452 ARIN Region origin ASes present in the Internet Routing Table: 19020 ARIN Prefixes per ASN: 14.18 ARIN Region origin ASes announcing only one prefix: 6974 ARIN Region transit ASes present in the Internet Routing Table: 1891 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4754 Number of ARIN addresses announced to Internet: 1285145600 Equivalent to 76 /8s, 153 /16s and 196 /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: 258678 Total RIPE prefixes after maximum aggregation: 121774 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254604 Unique aggregates announced from the RIPE address blocks: 157259 RIPE Region origin ASes present in the Internet Routing Table: 28260 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12025 RIPE Region transit ASes present in the Internet Routing Table: 3981 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11098 Number of RIPE addresses announced to Internet: 717762304 Equivalent to 42 /8s, 200 /16s and 47 /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: 117193 Total LACNIC prefixes after maximum aggregation: 28167 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116512 Unique aggregates announced from the LACNIC address blocks: 49037 LACNIC Region origin ASes present in the Internet Routing Table: 10972 LACNIC Prefixes per ASN: 10.62 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2267 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: 8775 Number of LACNIC addresses announced to Internet: 176629248 Equivalent to 10 /8s, 135 /16s and 38 /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: 29421 Total AfriNIC prefixes after maximum aggregation: 5767 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37636 Unique aggregates announced from the AfriNIC address blocks: 12222 AfriNIC Region origin ASes present in the Internet Routing Table: 1727 AfriNIC Prefixes per ASN: 21.79 AfriNIC Region origin ASes announcing only one prefix: 601 AfriNIC Region transit ASes present in the Internet Routing Table: 334 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: 1076 Number of AfriNIC addresses announced to Internet: 107745792 Equivalent to 6 /8s, 108 /16s and 18 /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 9497 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5744 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3685 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3549 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3381 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2904 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2362 835 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2170 439 213 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 8225 10775 2898 AMAZON-02, US 11492 4538 301 622 CABLEONE, US 7155 3965 279 48 VIASAT-SP-BACKBONE, US 22773 3604 3061 280 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3513 1320 64 SHAW, CA 16625 3148 1579 2332 AKAMAI-AS, US 749 3054 50541 2321 DNIC-AS-00749, US 396982 2627 3590 361 GOOGLE-CLOUD-PLATFORM, US 7018 2574 24117 1571 ATT-INTERNET4, US 30036 2487 359 533 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 7250 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4053 3399 163 AKAMAI-ASN1, NL 8551 3886 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2652 249 1378 M247, RO 34984 2268 359 609 TELLCOM-AS, TR 6849 2164 307 18 UKRTELNET, UA 58224 1788 913 608 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 11213 3343 583 Uninet S.A. de C.V., MX 10620 3499 506 850 Telmex Colombia S.A., CO 13999 2307 368 608 Mega Cable, S.A. de C.V., MX 11830 2265 369 64 Instituto Costarricense de Electricidad 28573 1333 2325 235 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1131 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 451 Techtel LMDS Comunicaciones Interactiva 26615 1030 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 24835 1541 533 30 RAYA-AS, EG 24863 1538 393 19 LINKdotNET-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1022 67 48 ORANGE-COTE-IVOIRE, CI 36935 882 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 531 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 487 73 5 EthioNet-AS, ET 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 11213 3343 583 Uninet S.A. de C.V., MX 9808 9497 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8225 10775 2898 AMAZON-02, US 12479 7250 1705 149 UNI2-AS, ES 7545 5744 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4538 301 622 CABLEONE, US 20940 4053 3399 163 AKAMAI-ASN1, NL 7155 3965 279 48 VIASAT-SP-BACKBONE, US 8551 3886 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 9497 9449 CHINAMOBILE-CN China Mobile Communications Grou 12479 7250 7101 UNI2-AS, ES 16509 8225 5327 AMAZON-02, US 7545 5744 5055 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3965 3917 VIASAT-SP-BACKBONE, US 11492 4538 3916 CABLEONE, US 20940 4053 3890 AKAMAI-ASN1, NL 8551 3886 3849 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3685 3664 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., 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 18798 UNALLOCATED 8.40.106.0/24 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 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /11:103 /12:299 /13:574 /14:1196 /15:2071 /16:13424 /17:8178 /18:13722 /19:24836 /20:43071 /21:51078 /22:108834 /23:97185 /24:545213 /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 6311 7250 UNI2-AS, ES 8151 5169 11213 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3446 4538 CABLEONE, US 8551 3358 3886 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3322 3513 SHAW, CA 7155 3039 3965 VIASAT-SP-BACKBONE, US 22773 2675 3604 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2144 2487 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2053 3499 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) ---------------------------------------------- 1:1672 2:1229 3:170 4:5 5:4478 6:122 7:6 8:1512 9:1 11:172 12:1574 13:394 14:2299 15:299 16:185 17:371 18:413 20:248 21:4 22:188 23:6147 24:2567 25:6 27:2498 29:19 31:2515 32:91 34:10 35:104 36:1931 37:4657 38:4407 39:804 40:151 41:3966 42:974 43:2317 44:309 45:16455 46:4214 47:369 49:1734 50:1820 51:571 52:1589 54:389 55:767 56:8 57:91 58:1682 59:1073 60:978 61:2468 62:2638 63:1923 64:5670 65:2318 66:4916 67:3010 68:1373 69:4120 70:1249 71:671 72:2967 74:2591 75:1460 76:607 77:2423 78:1847 79:3162 80:2101 81:1739 82:1491 83:1271 84:1519 85:2993 86:751 87:1985 88:1223 89:3615 90:618 91:7669 92:2047 93:2580 94:3603 95:3999 96:1329 97:336 98:1157 99:745 100:73 101:1301 102:2677 103:31188 104:4610 105:484 106:896 107:2562 108:1012 109:4396 110:2076 111:3188 112:2052 113:1497 114:1628 115:2018 116:1903 117:2561 118:2281 119:1994 120:1769 121:1045 122:2611 123:2134 124:1576 125:2479 128:1259 129:1053 130:992 131:1968 132:838 133:421 134:1897 135:303 136:867 137:945 138:2550 139:1522 140:1234 141:1454 142:1410 143:1488 144:1158 145:350 146:1914 147:1564 148:2305 149:1995 150:869 151:1149 152:1954 153:489 154:4259 155:1419 156:1704 157:1301 158:1045 159:2274 160:2543 161:1524 162:3526 163:1492 164:1580 165:1720 166:960 167:1727 168:3851 169:933 170:4600 171:877 172:3537 173:2926 174:1028 175:1156 176:3665 177:4543 178:3632 179:2139 180:2439 181:3415 182:3334 183:1932 184:2346 185:20169 186:4669 187:3942 188:4076 189:3519 190:9133 191:1431 192:10908 193:8834 194:7300 195:5141 196:3169 197:2384 198:5898 199:6071 200:7754 201:5859 202:10328 203:10189 204:4620 205:3541 206:3922 207:3384 208:4076 209:4858 210:4173 211:2403 212:4104 213:3531 214:1082 215:60 216:6612 217:2672 218:1268 219:411 220:1760 221:974 222:714 223:2149 End of report