[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Apr 8 20:17:04 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 08 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 263438
Prefixes after maximum aggregation (per Origin AS): 115275
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 136031
Number of IPv4 prefixes with a valid ROA: 118677
Number of IPv4 prefixes with an invalid ROA: 16
Number of IPv4 prefixes with no ROA: 144745
Total ASes present in the Internet Routing Table: 20370
Prefixes per ASN: 12.93
Origin-only ASes present in the Internet Routing Table: 17556
Origin ASes announcing only one prefix: 7872
Transit ASes present in the Internet Routing Table: 2814
Transit-only ASes present in the Internet Routing Table: 734
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 274
Number of instances of unregistered ASNs: 275
Number of 32-bit ASNs allocated by the RIRs: 46152
Number of 32-bit ASNs visible in the Routing Table: 7928
Prefixes from 32-bit ASNs in the Routing Table: 29647
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 1557770717
Equivalent to 92 /8s, 217 /16s and 177 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 84062
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31806
Total APNIC prefixes after maximum aggregation: 7445
APNIC Deaggregation factor: 4.27
Prefixes being announced from the APNIC address blocks: 30583
Unique aggregates announced from the APNIC address blocks: 7976
APNIC Region origin ASes present in the Internet Routing Table: 1206
APNIC Prefixes per ASN: 25.36
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 205
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 550
Number of APNIC addresses announced to Internet: 168726892
Equivalent to 10 /8s, 14 /16s and 145 /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: 124047
Total ARIN prefixes after maximum aggregation: 64180
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 121394
Unique aggregates announced from the ARIN address blocks: 64840
ARIN Region origin ASes present in the Internet Routing Table: 9363
ARIN Prefixes per ASN: 12.97
ARIN Region origin ASes announcing only one prefix: 3890
ARIN Region transit ASes present in the Internet Routing Table: 874
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2171
Number of ARIN addresses announced to Internet: 965077473
Equivalent to 57 /8s, 133 /16s and 233 /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: 49609
Total RIPE prefixes after maximum aggregation: 26829
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51294
Unique aggregates announced from the RIPE address blocks: 37302
RIPE Region origin ASes present in the Internet Routing Table: 4649
RIPE Prefixes per ASN: 11.03
RIPE Region origin ASes announcing only one prefix: 1945
RIPE Region transit ASes present in the Internet Routing Table: 699
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1904
Number of RIPE addresses announced to Internet: 281462352
Equivalent to 16 /8s, 198 /16s and 198 /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: 47451
Total LACNIC prefixes after maximum aggregation: 14418
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 46360
Unique aggregates announced from the LACNIC address blocks: 21697
LACNIC Region origin ASes present in the Internet Routing Table: 4025
LACNIC Prefixes per ASN: 11.52
LACNIC Region origin ASes announcing only one prefix: 1446
LACNIC Region transit ASes present in the Internet Routing Table: 825
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3156
Number of LACNIC addresses announced to Internet: 98724160
Equivalent to 5 /8s, 226 /16s and 105 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 10251
Total AfriNIC prefixes after maximum aggregation: 2199
AfriNIC Deaggregation factor: 4.66
Prefixes being announced from the AfriNIC address blocks: 13685
Unique aggregates announced from the AfriNIC address blocks: 4099
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 50.31
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 76
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147
Number of AfriNIC addresses announced to Internet: 43727360
Equivalent to 2 /8s, 155 /16s and 58 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 10124 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1584 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 521 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 498 32 211 LCS-AS-AP LARUS Limited, HK
45102 475 762 134 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12983 39642 3925 AMAZON-02, US
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2609 196 1589 USDA-1, US
367 2464 2858 1201 DNIC-ASBLK-00306-00371, US
7018 2211 22907 1577 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1830 3621 458 CELLCO-PART, US
209 1668 4890 276 CENTURYLINK-US-LEGACY-QWEST, US
20057 1431 1047 109 ATT-MOBILITY-LLC-AS20057, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1256 98 1013 AKAMAI-ASN1, NL
3257 926 2075 747 GTT-BACKBONE GTT, US
3215 894 4810 293 France Telecom - Orange, FR
25019 848 1299 129 SAUDINETSTC-AS, SA
34984 645 71 466 TELLCOM-AS, TR
8452 621 1842 17 TE-AS TE-AS, EG
8376 572 53 22 Jordan Data Communications, JO
51167 567 113 250 CONTABO, DE
212238 561 40 494 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7356 2020 1003 UNINET, MX
11830 1984 369 64 Instituto Costarricense de Electricidad y
10620 1856 277 1261 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 987 2503 53 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 642 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 543 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1485 389 16 LINKdotNET-AS, EG
29571 1009 101 73 ORANGE-COTE-IVOIRE, CI
20011 981 185 285 INTERNET-SOLUTIONS, ZA
24835 804 504 37 RAYA-AS, EG
36935 706 522 55 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 540 82 3 KENET-AS, KE
37069 504 1046 15 MOBINIL, EG
36903 443 203 316 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12983 39642 3925 AMAZON-02, US
9808 10124 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7356 2020 1003 UNINET, MX
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2609 196 1589 USDA-1, US
367 2464 2858 1201 DNIC-ASBLK-00306-00371, US
7018 2211 22907 1577 ATT-INTERNET4, US
11830 1984 369 64 Instituto Costarricense de Electricidad y
39891 1936 130 50 ALJAWWALSTC-AS, SA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10124 10036 CHINAMOBILE-CN China Mobile Communications Grou
8151 7356 6353 UNINET, MX
22773 3397 3217 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1984 1920 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
24863 1485 1469 LINKdotNET-AS, EG
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp
56046 1584 1397 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:151
/13:216 /14:577 /15:1100 /16:7590 /17:3458 /18:4204
/19:7713 /20:12456 /21:15526 /22:28026 /23:27623 /24:154488
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3874 7356 UNINET, MX
22773 2536 3397 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2330 12983 AMAZON-02, US
11830 1685 1984 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 1033 1856 Telmex Colombia S.A., CO
209 966 1668 CENTURYLINK-US-LEGACY-QWEST, US
19901 944 1195 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
20011 868 981 INTERNET-SOLUTIONS, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:480 3:606 4:5 5:845 6:150
7:5 8:638 11:171 12:997 13:295 14:137
15:301 16:241 17:5 18:889 20:167 21:4
22:188 23:2374 24:774 27:26 29:19 31:559
32:18 34:10 35:133 36:1229 37:890 38:1960
39:543 40:54 41:903 42:221 43:198 44:33
45:4001 46:934 47:83 49:44 50:373 51:382
52:1382 54:275 55:879 56:11 57:19 58:45
59:28 60:16 61:74 62:550 63:781 64:1904
65:1079 66:1568 67:980 68:423 69:1175 70:428
71:210 72:753 74:985 75:435 76:248 77:461
78:336 79:274 80:292 81:335 82:767 83:234
84:362 85:481 86:235 87:251 88:286 89:844
90:104 91:1000 92:681 93:454 94:960 95:756
96:285 97:66 98:468 99:160 100:34 101:19
102:388 103:1218 104:1367 105:142 106:58 107:1205
108:538 109:413 110:57 111:1908 112:462 113:40
114:57 115:15 116:57 117:1034 118:156 119:129
120:1163 121:42 122:126 123:151 124:57 125:24
128:466 129:284 130:663 131:925 132:564 133:213
134:477 135:117 136:581 137:495 138:913 139:436
140:703 141:435 142:969 143:675 144:425 145:109
146:676 147:478 148:860 149:746 150:378 151:637
152:494 153:127 154:1427 155:799 156:1214 157:368
158:533 159:751 160:808 161:708 162:988 163:351
164:723 165:806 166:751 167:634 168:1183 169:147
170:1640 171:121 172:1371 173:830 174:249 175:53
176:607 177:1048 178:534 179:736 180:50 181:1775
182:29 183:861 184:499 185:3411 186:2160 187:1454
188:821 189:1761 190:4401 191:431 192:5059 193:1851
194:1225 195:942 196:793 197:1522 198:2654 199:4902
200:3665 201:3321 202:981 203:719 204:2158 205:1950
206:1564 207:1506 208:1361 209:1993 210:309 211:431
212:1106 213:869 214:1004 215:42 216:2482 217:431
218:522 219:19 220:20 221:301 222:32 223:724
End of report
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