Routing Table Report 00:00 GMT Sat 12 Nov, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 384985
Prefixes after maximum aggregation: 167856
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187794
Total ASes present in the Internet Routing Table: 39282
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32468
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5193
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5437
Unregistered ASNs in the Routing Table: 908
Number of 32-bit ASNs allocated by the RIRs: 1940
Number of 32-bit ASNs visible in the Routing Table: 1621
Prefixes from 32-bit ASNs in the Routing Table: 3728
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2490554148
Equivalent to 148 /8s, 114 /16s and 215 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161568
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92948
Total APNIC prefixes after maximum aggregation: 30042
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89434
Unique aggregates announced from the APNIC address blocks: 38355
APNIC Region origin ASes present in the Internet Routing Table: 4590
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1284
APNIC Region transit ASes present in the Internet Routing Table: 721
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 106
Number of APNIC addresses announced to Internet: 629965568
Equivalent to 37 /8s, 140 /16s and 131 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148852
Total ARIN prefixes after maximum aggregation: 76489
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 120680
Unique aggregates announced from the ARIN address blocks: 48505
ARIN Region origin ASes present in the Internet Routing Table: 14743
ARIN Prefixes per ASN: 8.19
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804321544
Equivalent to 47 /8s, 240 /16s and 249 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 93954
Total RIPE prefixes after maximum aggregation: 51228
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85540
Unique aggregates announced from the RIPE address blocks: 54607
RIPE Region origin ASes present in the Internet Routing Table: 16116
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2493
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1126
Number of RIPE addresses announced to Internet: 492209612
Equivalent to 29 /8s, 86 /16s and 133 /24s
Percentage of available RIPE address space announced: 79.3
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36793
Total LACNIC prefixes after maximum aggregation: 7967
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36154
Unique aggregates announced from the LACNIC address blocks: 18635
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.40
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 92939528
Equivalent to 5 /8s, 138 /16s and 37 /24s
Percentage of available LACNIC address space announced: 61.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8521
Total AfriNIC prefixes after maximum aggregation: 2051
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6592
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27683840
Equivalent to 1 /8s, 166 /16s and 108 /24s
Percentage of available AfriNIC address space announced: 41.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1948 11105 662 Korea Telecom (KIX)
17974 1650 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 88 TPG Internet Pty Ltd
4755 1541 377 171 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
24560 964 343 218 Bharti Airtel Ltd.
17488 961 188 206 Hathway IP Over Cable Interne
18101 954 119 149 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3547 3814 220 bellsouth.net, inc.
7029 2957 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1620 1093 387 Time Warner Telecom
20115 1594 1545 624 Charter Communications
22773 1495 2909 102 Cox Communications, Inc.
30036 1415 255 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1323 7063 870 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1472 416 14 Corbina telecom
286 1082 810 199 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 559 185 438 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 531 2074 408 TDC Tele Danmark
3320 504 8168 389 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
8866 463 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1706 316 157 TVCABLE BOGOTA
8151 1491 2919 348 Uninet S.A. de C.V.
28573 1476 1043 85 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 604 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 577 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 543 234 96 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 729 146 34 LINKdotNET AS number
8452 700 446 12 TEDATA
15475 455 74 8 Nile Online
36992 285 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3547 3814 220 bellsouth.net, inc.
7029 2957 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1948 11105 662 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1650 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 88 TPG Internet Pty Ltd
4323 1620 1093 387 Time Warner Telecom
20115 1594 1545 624 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2957 2745 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1650 1614 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1622 1534 TPG Internet Pty Ltd
8402 1472 1458 Corbina telecom
22773 1495 1393 Cox Communications, Inc.
28573 1476 1391 Types of queries are: POCs, o
7552 1394 1387 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:813 /15:1454 /16:12146 /17:6327 /18:10430
/19:20498 /20:28794 /21:28088 /22:37894 /23:35678 /24:200314
/25:66 /26:85 /27:108 /28:288 /29:118 /30:503
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2570 2957 Windstream Communications Inc
6389 2187 3547 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1449 1472 Corbina telecom
30036 1375 1415 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1850 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 958 1495 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:484 4:19 5:1 6:3 8:357
12:1968 13:1 14:549 15:11 16:3 17:7
20:9 23:63 24:1687 27:1031 31:683 32:120
33:2 34:2 36:4 38:758 39:1 40:110
41:2700 42:60 43:1 44:3 46:1051 47:3
49:298 50:451 52:13 55:9 56:2 57:57
58:922 59:496 60:362 61:1141 62:1105 63:1989
64:4087 65:2304 66:4347 67:2049 68:1355 69:3252
70:954 71:387 72:1850 73:1 74:2686 75:443
76:328 77:881 78:880 79:482 80:1135 81:840
82:531 83:523 84:623 85:1155 86:408 87:934
88:360 89:1604 90:235 91:4267 92:537 93:1547
94:1307 95:1083 96:433 97:286 98:950 99:37
101:233 103:459 106:7 107:91 108:80 109:1189
110:675 111:808 112:362 113:482 114:623 115:715
116:897 117:722 118:899 119:1268 120:345 121:700
122:1574 123:1020 124:1353 125:1356 128:247 129:187
130:165 131:611 132:151 133:21 134:222 135:54
136:213 137:142 138:287 139:132 140:494 141:253
142:390 143:402 144:495 145:64 146:472 147:229
148:690 149:270 150:164 151:194 152:449 153:172
154:7 155:387 156:208 157:361 158:155 159:489
160:331 161:214 162:374 163:173 164:507 165:387
166:544 167:445 168:821 169:146 170:881 171:87
172:4 173:1760 174:708 175:432 176:293 177:367
178:1108 180:1151 181:38 182:657 183:236 184:393
185:1 186:1399 187:796 188:965 189:1161 190:5201
192:5949 193:5065 194:3575 195:3129 196:1280 197:171
198:3629 199:4215 200:5538 201:1707 202:8555 203:8544
204:4317 205:2377 206:2691 207:2820 208:4036 209:3615
210:2746 211:1468 212:2122 213:1814 214:775 215:96
216:4941 217:1608 218:570 219:344 220:1264 221:513
222:325 223:272
End of report
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