IPv4 R&E Routing Table Report 23:05 GMT Wed 22 Mar, 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: 909220 Prefixes after maximum aggregation (per Origin AS): 345816 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447020 Number of IPv4 prefixes with a valid ROA: 380285 Number of IPv4 prefixes with an invalid ROA: 1612 Number of IPv4 prefixes with no ROA: 527323 Total ASes present in the Internet Routing Table: 74057 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63613 Origin ASes announcing only one prefix: 26134 Transit ASes present in the Internet Routing Table: 10444 Transit-only ASes present in the Internet Routing Table: 438 Paths with bogon ASNs present in the IPv4 Routing Table: 35 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: 1087 Number of instances of unregistered ASNs: 1102 Number of 32-bit ASNs allocated by the RIRs: 41495 Number of 32-bit ASNs visible in the Routing Table: 34286 Prefixes from 32-bit ASNs in the Routing Table: 168163 Number of bogon 32-bit ASNs visible in the Routing Table: 43 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 500 Number of addresses announced to Internet: 3061636352 Equivalent to 182 /8s, 124 /16s and 221 /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: 305721 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235948 Total APNIC prefixes after maximum aggregation: 68213 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230615 Unique aggregates announced from the APNIC address blocks: 97848 APNIC Region origin ASes present in the Internet Routing Table: 13273 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3883 APNIC Region transit ASes present in the Internet Routing Table: 1783 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8624 Number of APNIC addresses announced to Internet: 773091072 Equivalent to 46 /8s, 20 /16s and 111 /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: 266973 Total ARIN prefixes after maximum aggregation: 121335 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269163 Unique aggregates announced from the ARIN address blocks: 130271 ARIN Region origin ASes present in the Internet Routing Table: 19007 ARIN Prefixes per ASN: 14.16 ARIN Region origin ASes announcing only one prefix: 6973 ARIN Region transit ASes present in the Internet Routing Table: 1890 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: 4738 Number of ARIN addresses announced to Internet: 1285246720 Equivalent to 76 /8s, 155 /16s and 79 /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: 258170 Total RIPE prefixes after maximum aggregation: 121506 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254418 Unique aggregates announced from the RIPE address blocks: 157295 RIPE Region origin ASes present in the Internet Routing Table: 28273 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12034 RIPE Region transit ASes present in the Internet Routing Table: 3978 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: 11092 Number of RIPE addresses announced to Internet: 718249728 Equivalent to 42 /8s, 207 /16s and 159 /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: 117517 Total LACNIC prefixes after maximum aggregation: 28176 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116852 Unique aggregates announced from the LACNIC address blocks: 48988 LACNIC Region origin ASes present in the Internet Routing Table: 10957 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2269 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: 8760 Number of LACNIC addresses announced to Internet: 176587264 Equivalent to 10 /8s, 134 /16s and 130 /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: 29525 Total AfriNIC prefixes after maximum aggregation: 5793 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37672 Unique aggregates announced from the AfriNIC address blocks: 12217 AfriNIC Region origin ASes present in the Internet Routing Table: 1726 AfriNIC Prefixes per ASN: 21.83 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 331 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: 1072 Number of AfriNIC addresses announced to Internet: 108082176 Equivalent to 6 /8s, 113 /16s and 52 /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 9496 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5755 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3355 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2860 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 587 KIXS-AS-KR Korea Telecom, KR 4755 2171 440 216 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 8068 10760 2896 AMAZON-02, US 11492 4533 300 621 CABLEONE, US 7155 3962 279 45 VIASAT-SP-BACKBONE, US 22773 3622 3063 292 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3513 1320 64 SHAW, CA 16625 3159 1589 2339 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2622 3588 355 GOOGLE-CLOUD-PLATFORM, US 7018 2566 24118 1571 ATT-INTERNET4, US 30036 2510 361 482 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 7127 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4042 3399 163 AKAMAI-ASN1, NL 8551 3889 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2902 2292 913 ROSTELECOM-AS, RU 9009 2655 252 1388 M247, RO 34984 2267 359 612 TELLCOM-AS, TR 6849 2135 339 19 UKRTELNET, UA 58224 1849 949 547 TCI, IR 13188 1607 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 11191 3341 584 Uninet S.A. de C.V., MX 10620 3477 505 883 Telmex Colombia S.A., CO 13999 2293 373 608 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1331 2325 247 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 454 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 24863 1572 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1018 67 53 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 529 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 11191 3341 584 Uninet S.A. de C.V., MX 9808 9496 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8068 10760 2896 AMAZON-02, US 12479 7127 1705 149 UNI2-AS, ES 7545 5755 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4533 300 621 CABLEONE, US 20940 4042 3399 163 AKAMAI-ASN1, NL 7155 3962 279 45 VIASAT-SP-BACKBONE, US 8551 3889 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 9496 9448 CHINAMOBILE-CN China Mobile Communications Grou 12479 7127 6978 UNI2-AS, ES 16509 8068 5172 AMAZON-02, US 7545 5755 5065 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3962 3917 VIASAT-SP-BACKBONE, US 11492 4533 3912 CABLEONE, US 20940 4042 3879 AKAMAI-ASN1, NL 8551 3889 3852 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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 /13:575 /14:1196 /15:2074 /16:13440 /17:8183 /18:13716 /19:24869 /20:43041 /21:51100 /22:108861 /23:97136 /24:544551 /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 6184 7127 UNI2-AS, ES 8151 5148 11191 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3441 4533 CABLEONE, US 8551 3361 3889 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3322 3513 SHAW, CA 7155 3037 3962 VIASAT-SP-BACKBONE, US 22773 2679 3622 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2167 2510 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2031 3477 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 2:1221 3:170 4:5 5:4446 6:117 7:6 8:1514 9:1 11:172 12:1577 13:388 14:2308 15:296 16:111 17:366 18:402 20:248 21:4 22:188 23:6108 24:2494 25:6 27:2500 29:19 31:2523 32:101 34:10 35:104 36:1925 37:4634 38:4352 39:807 40:151 41:4006 42:953 43:2303 44:310 45:16436 46:4222 47:370 49:1734 50:1821 51:569 52:1584 54:386 55:864 56:8 57:91 58:1682 59:1084 60:973 61:2463 62:2635 63:1932 64:5667 65:2312 66:4916 67:3010 68:1369 69:4121 70:1254 71:670 72:2968 74:2592 75:1463 76:605 77:2420 78:1844 79:3160 80:2081 81:1737 82:1498 83:1255 84:1520 85:3005 86:751 87:1958 88:1236 89:3602 90:613 91:7679 92:2035 93:2580 94:3577 95:3968 96:1329 97:332 98:1158 99:747 100:73 101:1303 102:2672 103:31087 104:4598 105:483 106:895 107:2549 108:974 109:4393 110:2068 111:3192 112:2049 113:1491 114:1624 115:2012 116:1902 117:2550 118:2285 119:1962 120:1749 121:1046 122:2589 123:2135 124:1578 125:2441 128:1248 129:1056 130:994 131:2007 132:833 133:421 134:1897 135:300 136:862 137:934 138:2569 139:1522 140:1220 141:1481 142:1429 143:1496 144:1161 145:356 146:1924 147:1562 148:2281 149:1952 150:872 151:1151 152:1951 153:488 154:4235 155:1412 156:1680 157:1280 158:1038 159:2269 160:2536 161:1514 162:3532 163:1496 164:1585 165:1707 166:868 167:1732 168:3852 169:929 170:4613 171:882 172:3513 173:2938 174:1019 175:1156 176:3666 177:4642 178:3629 179:2197 180:2437 181:3420 182:3322 183:1935 184:2352 185:20160 186:4712 187:3995 188:4058 189:3587 190:9116 191:1453 192:10932 193:8832 194:7256 195:5134 196:3178 197:2387 198:5887 199:6087 200:7742 201:5864 202:10345 203:10188 204:4610 205:3536 206:3859 207:3383 208:4060 209:4842 210:4182 211:2403 212:4107 213:3510 214:1098 215:60 216:6596 217:2664 218:1271 219:410 220:1758 221:973 222:721 223:2139 End of report