This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam'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 . IPv4 R&E Routing Table Report 21:25 GMT Sat 14 Mar, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1067690 Prefixes after maximum aggregation (per Origin AS): 399851 Deaggregation factor: 2.67 Unique aggregates announced (without unneeded subnets): 511658 Number of IPv4 prefixes with a valid ROA: 639029 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 428642 Total ASes present in the Internet Routing Table: 78248 Prefixes per ASN: 13.64 Origin-only ASes present in the Internet Routing Table: 66938 Origin ASes announcing only one prefix: 26955 Transit ASes present in the Internet Routing Table: 11310 Transit-only ASes present in the Internet Routing Table: 591 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1089 Number of instances of unregistered ASNs: 1119 Number of 32-bit ASNs allocated by the RIRs: 48956 Number of 32-bit ASNs visible in the Routing Table: 40168 Prefixes from 32-bit ASNs in the Routing Table: 232827 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 308 Number of addresses announced to Internet: 3112489760 Equivalent to 185 /8s, 132 /16s and 211 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 348713 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293153 Total APNIC prefixes after maximum aggregation: 82964 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 280563 Unique aggregates announced from the APNIC address blocks: 107299 APNIC Region origin ASes present in the Internet Routing Table: 15212 APNIC Prefixes per ASN: 18.44 APNIC Region origin ASes announcing only one prefix: 4648 APNIC Region transit ASes present in the Internet Routing Table: 2051 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10723 Number of APNIC addresses announced to Internet: 757199680 Equivalent to 45 /8s, 33 /16s and 243 /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, 131072-155961 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: 307125 Total ARIN prefixes after maximum aggregation: 137207 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 305582 Unique aggregates announced from the ARIN address blocks: 147079 ARIN Region origin ASes present in the Internet Routing Table: 19404 ARIN Prefixes per ASN: 15.75 ARIN Region origin ASes announcing only one prefix: 7067 ARIN Region transit ASes present in the Internet Routing Table: 1999 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5506 Number of ARIN addresses announced to Internet: 1348899328 Equivalent to 80 /8s, 102 /16s and 146 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 288414 Total RIPE prefixes after maximum aggregation: 141166 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 290987 Unique aggregates announced from the RIPE address blocks: 187340 RIPE Region origin ASes present in the Internet Routing Table: 29346 RIPE Prefixes per ASN: 9.92 RIPE Region origin ASes announcing only one prefix: 12145 RIPE Region transit ASes present in the Internet Routing Table: 4076 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13188 Number of RIPE addresses announced to Internet: 732482688 Equivalent to 43 /8s, 168 /16s and 204 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 136708 Total LACNIC prefixes after maximum aggregation: 30716 LACNIC Deaggregation factor: 4.45 Prefixes being announced from the LACNIC address blocks: 132274 Unique aggregates announced from the LACNIC address blocks: 50227 LACNIC Region origin ASes present in the Internet Routing Table: 11361 LACNIC Prefixes per ASN: 11.64 LACNIC Region origin ASes announcing only one prefix: 2427 LACNIC Region transit ASes present in the Internet Routing Table: 2585 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9370 Number of LACNIC addresses announced to Internet: 170370144 Equivalent to 10 /8s, 39 /16s and 164 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 41201 Total AfriNIC prefixes after maximum aggregation: 7112 AfriNIC Deaggregation factor: 5.79 Prefixes being announced from the AfriNIC address blocks: 57976 Unique aggregates announced from the AfriNIC address blocks: 19440 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 28.77 AfriNIC Region origin ASes announcing only one prefix: 668 AfriNIC Region transit ASes present in the Internet Routing Table: 395 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1381 Number of AfriNIC addresses announced to Internet: 103379712 Equivalent to 6 /8s, 41 /16s and 115 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & ERX transfers AfriNIC Address Blocks 41/8, 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 13920 9092 160 CHINAMOBILE-CN China Mobile Communication 7545 5965 829 516 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 18403 4582 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4426 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3611 908 231 CMNET-JIANGSU-AP China Mobile communicati 24560 3005 865 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14457 41219 5600 AMAZON-02 - Amazon.com, Inc., US 174 4917 8764 844 COGENT-174 - Cogent Communications, LLC, 22773 4778 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 396982 3288 4856 483 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2714 1186 2103 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2700 221 890 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7204 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3850 3393 115 AKAMAI-ASN1, NL 9009 3830 355 2249 M247, RO 12389 3183 2320 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2668 193 1955 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1703 1852 17 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 787 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12809 3302 596 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 28573 1583 2430 272 Claro NXT Telecomunicacoes Ltda, BR 11664 1454 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2475 94 TIM SA, BR 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1332 205 344 NTT-DATA-Inc, ZA 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 15399 547 57 58 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14457 41219 5600 AMAZON-02 - Amazon.com, Inc., US 9808 13920 9092 160 CHINAMOBILE-CN China Mobile Communication 8151 12809 3302 596 UNINET, MX 12479 7204 1711 149 UNI2-AS, ES 7545 5965 829 516 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4917 8764 844 COGENT-174 - Cogent Communications, LLC, 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 22773 4778 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13920 13760 CHINAMOBILE-CN China Mobile Communications Grou 8151 12809 12213 UNINET, MX 12479 7204 7055 UNI2-AS, ES 7545 5965 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4841 4765 ERX-CERNET-BKB China Education and Research Net 18403 4582 4557 FPT-AS-AP FPT Telecom Company, VN 9498 4846 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4778 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4426 4373 VNPT-AS-VN VNPT Corp, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 33491 COMCAST-33491 - Comcast 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 11164 INTERNET2-I2PX - Internet2, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:40 /11:95 /12:298 /13:585 /14:1196 /15:2111 /16:13754 /17:8501 /18:13989 /19:26416 /20:47761 /21:53837 /22:115800 /23:113030 /24:669518 /25:74 /26:83 /27:116 /28:40 /29:65 /30:9 /31:3 /32:339 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6972 12809 UNINET, MX 12479 6141 7204 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4647 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3048 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2586 14457 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2556 2:1628 3:999 4:7 5:5222 6:196 7:6 8:1534 9:28 11:172 12:1194 13:640 14:2742 15:459 16:167 17:424 18:916 20:620 21:4 22:188 23:8242 24:2830 25:2 27:2847 28:1 29:19 31:3482 32:34 34:91 35:296 36:4656 37:4497 38:11093 39:1270 40:415 41:4650 42:2129 43:3117 44:447 45:20812 46:5011 47:429 48:89 49:2248 50:2068 51:602 52:1309 54:280 55:1126 56:11 57:328 58:2580 59:1481 60:1183 61:3346 62:3176 63:1770 64:6262 65:2119 66:6034 67:3262 68:1502 69:4207 70:1040 71:622 72:3085 74:3004 75:1496 76:592 77:2877 78:1914 79:1814 80:2376 81:2244 82:4005 83:1451 84:2052 85:3817 86:1107 87:2443 88:1360 89:4715 90:799 91:8530 92:2840 93:3025 94:4421 95:4661 96:1442 97:313 98:948 99:800 100:68 101:1631 102:5231 103:32915 104:5471 105:2312 106:945 107:2854 108:1230 109:4297 110:2307 111:4141 112:3186 113:2105 114:2208 115:2355 116:2229 117:3468 118:3067 119:2179 120:2749 121:1605 122:3031 123:2464 124:1820 125:3044 126:125 128:1693 129:1015 130:1617 131:2573 132:813 133:477 134:1650 135:587 136:1598 137:1366 138:3409 139:1715 140:1810 141:1598 142:2560 143:2204 144:1749 145:632 146:2209 147:2170 148:2737 149:3123 150:1334 151:2706 152:2259 153:1033 154:9850 155:2320 156:4419 157:2297 158:1492 159:2776 160:3890 161:1955 162:4030 163:2428 164:2077 165:2667 166:1304 167:2276 168:4177 169:918 170:5793 171:1127 172:4599 173:3468 174:882 175:1403 176:3909 177:5682 178:4357 179:2598 180:3125 181:4602 182:4036 183:2843 184:2016 185:21971 186:6159 187:5356 188:4601 189:4675 190:9992 191:1906 192:11572 193:9632 194:7971 195:5937 196:3589 197:3893 198:6158 199:6113 200:8425 201:6573 202:11211 203:10908 204:4730 205:3746 206:4586 207:3898 208:4402 209:5424 210:5182 211:2872 212:5055 213:4124 214:1046 215:46 216:7284 217:3558 218:1982 219:653 220:2297 221:1336 222:1432 223:3385 End of report