This is an automated weekly mailing describing the state of the Global IPv4 Research & Education Routing Table received by NSRC's collector from Internet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . Global R&E Routing Table Report 21:35 GMT Sat 18 Dec, 2021 BGP Table (Global) as seen at USP. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/USP/ Analysis Summary ---------------- BGP routing table entries examined: 883494 Prefixes after maximum aggregation (per Origin AS): 332511 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 423559 Total ASes present in the Internet Routing Table: 72508 Prefixes per ASN: 12.18 Origin-only ASes present in the Internet Routing Table: 62244 Origin ASes announcing only one prefix: 25662 Transit ASes present in the Internet Routing Table: 10264 Transit-only ASes present in the Internet Routing Table: 366 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1199 Number of instances of unregistered ASNs: 1201 Number of 32-bit ASNs allocated by the RIRs: 38118 Number of 32-bit ASNs visible in the Routing Table: 31659 Prefixes from 32-bit ASNs in the Routing Table: 146844 Number of bogon 32-bit ASNs visible in the Routing Table: 37 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 822 Number of addresses announced to Internet: 3072801792 Equivalent to 183 /8s, 39 /16s and 60 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 297806 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 232526 Total APNIC prefixes after maximum aggregation: 64769 APNIC Deaggregation factor: 3.59 Prefixes being announced from the APNIC address blocks: 227948 Unique aggregates announced from the APNIC address blocks: 93165 APNIC Region origin ASes present in the Internet Routing Table: 12157 APNIC Prefixes per ASN: 18.75 APNIC Region origin ASes announcing only one prefix: 3453 APNIC Region transit ASes present in the Internet Routing Table: 1714 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7359 Number of APNIC addresses announced to Internet: 773074944 Equivalent to 46 /8s, 20 /16s and 48 /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: 256916 Total ARIN prefixes after maximum aggregation: 118345 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 256395 Unique aggregates announced from the ARIN address blocks: 122221 ARIN Region origin ASes present in the Internet Routing Table: 18917 ARIN Prefixes per ASN: 13.55 ARIN Region origin ASes announcing only one prefix: 6850 ARIN Region transit ASes present in the Internet Routing Table: 1927 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4254 Number of ARIN addresses announced to Internet: 1300903680 Equivalent to 77 /8s, 138 /16s and 55 /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: 251937 Total RIPE prefixes after maximum aggregation: 116096 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 248365 Unique aggregates announced from the RIPE address blocks: 148289 RIPE Region origin ASes present in the Internet Routing Table: 28175 RIPE Prefixes per ASN: 8.82 RIPE Region origin ASes announcing only one prefix: 12153 RIPE Region transit ASes present in the Internet Routing Table: 3934 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10585 Number of RIPE addresses announced to Internet: 713798144 Equivalent to 42 /8s, 139 /16s and 178 /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: 113547 Total LACNIC prefixes after maximum aggregation: 27229 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 114314 Unique aggregates announced from the LACNIC address blocks: 47665 LACNIC Region origin ASes present in the Internet Routing Table: 10863 LACNIC Prefixes per ASN: 10.52 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2180 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8544 Number of LACNIC addresses announced to Internet: 176181504 Equivalent to 10 /8s, 128 /16s and 81 /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: 27369 Total AfriNIC prefixes after maximum aggregation: 5296 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 35649 Unique aggregates announced from the AfriNIC address blocks: 11477 AfriNIC Region origin ASes present in the Internet Routing Table: 1586 AfriNIC Prefixes per ASN: 22.48 AfriNIC Region origin ASes announcing only one prefix: 550 AfriNIC Region transit ASes present in the Internet Routing Table: 325 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 917 Number of AfriNIC addresses announced to Internet: 108285184 Equivalent to 6 /8s, 116 /16s and 77 /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 8747 8995 48 CHINAMOBILE-CN China Mobile Communicati 7545 5831 786 675 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4651 4192 73 ERX-CERNET-BKB China Education and Rese 7552 3589 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3482 1022 55 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3249 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2238 11118 574 KIXS-AS-KR Korea Telecom, KR 9498 2217 475 237 BBIL-AP BHARTI Airtel Ltd., IN 45090 2136 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2123 429 204 TATACOMM-AS TATA Communications formerl Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6038 10080 2586 AMAZON-02, US 11492 4580 303 821 CABLEONE, US 22773 4037 3058 393 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3664 1887 2549 AKAMAI-AS, US 6327 3390 1318 64 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2605 374 135 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 5043 431 CENTURYLINK-US-LEGACY-QWEST, US 20115 2238 3033 504 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6847 1733 150 UNI2-AS, ES 9121 6763 1692 17 TTNET, TR 20940 3862 3196 547 AKAMAI-ASN1, NL 8551 3503 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2911 2280 891 ROSTELECOM-AS, RU 9009 2611 275 1394 M247, GB 34984 2203 355 599 TELLCOM-AS, TR 47331 1883 304 1436 TTNET, TR 58224 1763 919 579 TCI, IR Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10567 3450 581 Uninet S.A. de C.V., MX 10620 3246 490 850 Telmex Colombia S.A., CO 11830 2466 369 62 Instituto Costarricense de Electricidad 13999 1637 283 461 Mega Cable, S.A. de C.V., MX 6503 1437 355 523 Axtel, S.A.B. de C.V., MX 28573 1376 2324 258 CLARO S.A., BR 3816 1244 657 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1140 2350 138 TIM SA, BR 6147 1091 370 21 Telefonica del Peru S.A.A., PE 11664 993 190 443 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1626 393 21 LINKdotNET-AS, EG 24835 1546 499 32 RAYA-AS, EG 36992 1286 1430 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 852 68 11 ORANGE-COTE-IVOIRE, CI 36935 685 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 515 50 32 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 428 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10567 3450 581 Uninet S.A. de C.V., MX 9808 8747 8995 48 CHINAMOBILE-CN China Mobile Communicati 12479 6847 1733 150 UNI2-AS, ES 9121 6763 1692 17 TTNET, TR 16509 6038 10080 2586 AMAZON-02, US 7545 5831 786 675 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4651 4192 73 ERX-CERNET-BKB China Education and Rese 11492 4580 303 821 CABLEONE, US 22773 4037 3058 393 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8747 8699 CHINAMOBILE-CN China Mobile Communications Grou 9121 6763 6746 TTNET, TR 12479 6847 6697 UNI2-AS, ES 7545 5831 5156 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4651 4578 ERX-CERNET-BKB China Education and Research Net 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4580 3759 CABLEONE, US 22773 4037 3644 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3589 3570 VIETEL-AS-AP Viettel Group, VN 8551 3503 3464 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo Complete listing at https://bgp.nsrc.org/REN/USP/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.252.160.0/24 Origin: 398968 GROUP-IID-01, US 23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.162.0/24 Origin: 398968 GROUP-IID-01, US 23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE Complete listing at https://bgp.nsrc.org/REN/USP/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:41 /11:99 /12:304 /13:594 /14:1209 /15:2077 /16:13572 /17:8335 /18:13932 /19:25272 /20:43336 /21:52114 /22:108393 /23:95298 /24:518888 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 9121 5932 6763 TTNET, TR 12479 5782 6847 UNI2-AS, ES 8151 4391 10567 Uninet S.A. de C.V., MX 11492 3533 4580 CABLEONE, US 6327 3199 3390 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3003 4037 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2967 3503 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2260 2605 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1886 2:1012 3:148 4:18 5:3677 6:102 7:5 8:1516 9:1 11:172 12:1699 13:408 14:2299 15:135 16:34 17:373 18:130 20:143 21:4 22:188 23:5340 24:2354 25:2 27:2651 29:19 31:2426 32:103 34:1 35:49 36:1729 37:3908 38:2415 39:706 40:136 41:3890 42:1043 43:2117 44:296 45:15748 46:3717 47:298 49:1608 50:1894 51:106 52:1348 54:288 55:738 56:4 57:59 58:1798 59:1118 60:947 61:2244 62:2414 63:1944 64:5415 65:2333 66:4933 67:2942 68:1183 69:4140 70:1339 71:684 72:3068 74:2618 75:1505 76:709 77:2128 78:3815 79:2769 80:1893 81:1640 82:1409 83:1185 84:1320 85:3562 86:701 87:1911 88:2622 89:3107 90:494 91:7526 92:1889 93:2570 94:3251 95:4516 96:1293 97:344 98:985 99:879 100:75 101:1065 102:1862 103:27881 104:4088 105:442 106:846 107:2409 108:749 109:3994 110:2065 111:3115 112:1938 113:1450 114:1565 115:2130 116:1853 117:2488 118:2312 119:1896 120:1594 121:1043 122:2516 123:2155 124:1550 125:2051 128:1365 129:1121 130:901 131:2081 132:783 133:365 134:1925 135:288 136:846 137:1012 138:2472 139:1212 140:855 141:1331 142:1234 143:1400 144:1229 145:332 146:1738 147:1440 148:2237 149:1573 150:872 151:1075 152:1671 153:522 154:3553 155:1358 156:1876 157:1218 158:992 159:2016 160:2378 161:1267 162:3417 163:1192 164:1651 165:1556 166:621 167:1712 168:3644 169:683 170:4302 171:815 172:2921 173:3043 174:1003 175:1150 176:3435 177:4503 178:3015 179:1990 180:2349 181:2672 182:3156 183:1921 184:2417 185:19159 186:4265 187:3492 188:3497 189:3126 190:8856 191:1314 192:11024 193:8486 194:6940 195:4983 196:2930 197:2350 198:5991 199:5973 200:7438 201:5690 202:10563 203:10204 204:4503 205:3390 206:3822 207:3359 208:3996 209:4601 210:4256 211:2414 212:3930 213:3369 214:1152 215:64 216:6404 217:2631 218:1211 219:585 220:2055 221:986 222:849 223:2106 End of report