Routing Table Report 00:00 GMT Fri 07 Oct, 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: 379967
Prefixes after maximum aggregation: 170019
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185503
Total ASes present in the Internet Routing Table: 38976
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32261
Origin ASes announcing only one prefix: 15490
Transit ASes present in the Internet Routing Table: 5238
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4969
Unregistered ASNs in the Routing Table: 837
Number of 32-bit ASNs allocated by the RIRs: 1825
Number of 32-bit ASNs visible in the Routing Table: 1477
Prefixes from 32-bit ASNs in the Routing Table: 3386
Special use prefixes present in the Routing Table: 91
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2483213330
Equivalent to 148 /8s, 2 /16s and 212 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 158237
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92341
Total APNIC prefixes after maximum aggregation: 29659
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88908
Unique aggregates announced from the APNIC address blocks: 37939
APNIC Region origin ASes present in the Internet Routing Table: 4552
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 628451840
Equivalent to 37 /8s, 117 /16s and 106 /24s
Percentage of available APNIC address space announced: 79.7
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: 147551
Total ARIN prefixes after maximum aggregation: 76139
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119294
Unique aggregates announced from the ARIN address blocks: 47994
ARIN Region origin ASes present in the Internet Routing Table: 14724
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1535
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804683544
Equivalent to 47 /8s, 246 /16s and 127 /24s
Percentage of available ARIN address space announced: 64.0
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: 92175
Total RIPE prefixes after maximum aggregation: 50616
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 83999
Unique aggregates announced from the RIPE address blocks: 54230
RIPE Region origin ASes present in the Internet Routing Table: 16018
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7960
RIPE Region transit ASes present in the Internet Routing Table: 2516
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1043
Number of RIPE addresses announced to Internet: 490825932
Equivalent to 29 /8s, 65 /16s and 104 /24s
Percentage of available RIPE address space announced: 79.1
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: 35740
Total LACNIC prefixes after maximum aggregation: 7851
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34977
Unique aggregates announced from the LACNIC address blocks: 18081
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.86
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 328
Number of LACNIC addresses announced to Internet: 90265096
Equivalent to 5 /8s, 97 /16s and 86 /24s
Percentage of available LACNIC address space announced: 59.8
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: 8580
Total AfriNIC prefixes after maximum aggregation: 2018
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6657
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 489
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27799296
Equivalent to 1 /8s, 168 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 41.4
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
17974 1960 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1933 11072 655 Korea Telecom (KIX)
7545 1605 303 85 TPG Internet Pty Ltd
4755 1537 378 173 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 7 Vietel Corporation
24560 1180 345 206 Bharti Airtel Ltd.
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1049 2079 297 CNCGROUP IP network: China169
18101 951 165 142 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 3553 3817 226 bellsouth.net, inc.
18566 1914 366 238 Covad Communications
7029 1902 1041 207 Windstream Communications Inc
1785 1831 680 122 AppliedTheory Corporation
4323 1628 1099 393 Time Warner Telecom
20115 1591 1541 634 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1383 250 675 Mediacom Communications Corp
7018 1338 7051 876 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 1435 352 13 Corbina telecom
286 1072 825 200 KPNQwest Backbone AS
6830 636 1890 410 UPC Distribution Services
34984 577 108 179 Tellcom Iletisim Hizmetleri
20940 550 186 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 531 2082 408 TDC Tele Danmark
3320 502 8169 384 Deutsche Telekom AG
12479 480 593 7 Uni2 Autonomous System
8866 460 133 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 1680 310 154 TVCABLE BOGOTA
8151 1445 2820 340 Uninet S.A. de C.V.
28573 1360 1014 68 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
14420 756 59 87 Types of queries are: POCs, o
27947 589 72 79 Telconet S.A
6503 584 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 98 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 814 146 36 LINKdotNET AS number
8452 723 445 11 TEDATA
15475 445 74 8 Nile Online
36992 297 415 19 Etisalat MISR
3741 277 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
12258 199 28 59 YEBO-AS
33776 197 13 13 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
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 3553 3817 226 bellsouth.net, inc.
17974 1960 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1933 11072 655 Korea Telecom (KIX)
18566 1914 366 238 Covad Communications
7029 1902 1041 207 Windstream Communications Inc
1785 1831 680 122 AppliedTheory Corporation
10620 1680 310 154 TVCABLE BOGOTA
4323 1628 1099 393 Time Warner Telecom
7545 1605 303 85 TPG Internet Pty Ltd
20115 1591 1541 634 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
17974 1960 1927 PT TELEKOMUNIKASI INDONESIA
1785 1831 1709 AppliedTheory Corporation
7029 1902 1695 Windstream Communications Inc
18566 1914 1676 Covad Communications
10620 1680 1526 TVCABLE BOGOTA
7545 1605 1520 TPG Internet Pty Ltd
8402 1435 1422 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1537 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1459 1359 Cox Communications, Inc.
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 36938 >>UNKNOWN<<
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 /12:235
/13:464 /14:812 /15:1458 /16:12116 /17:6251 /18:10357
/19:20393 /20:28322 /21:27695 /22:37140 /23:35486 /24:197439
/25:67 /26:86 /27:112 /28:282 /29:106 /30:479
/31:53 /32:474
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2189 3553 bellsouth.net, inc.
18566 1871 1914 Covad Communications
7029 1580 1902 Windstream Communications Inc
10620 1575 1680 TVCABLE BOGOTA
8402 1412 1435 Corbina telecom
30036 1345 1383 Mediacom Communications Corp
11492 1113 1151 Cable One
1785 1055 1831 AppliedTheory Corporation
7011 1049 1168 Citizens Utilities
22773 948 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:386 2:480 4:19 5:1 6:3 8:357
12:1954 13:1 14:536 15:11 16:3 17:7
20:10 23:53 24:1695 27:965 31:579 32:150
33:4 34:2 36:4 38:757 40:108 41:2660
42:49 44:3 46:1001 47:3 49:264 50:436
52:13 55:5 56:2 57:47 58:884 59:491
60:365 61:1177 62:1095 63:1956 64:4089 65:2306
66:4047 67:1995 68:1283 69:3313 70:879 71:377
72:1878 73:1 74:2535 75:374 76:349 77:886
78:876 79:488 80:1131 81:842 82:512 83:508
84:617 85:1116 86:411 87:876 88:358 89:1616
90:269 91:4163 92:530 93:1380 94:1314 95:1034
96:440 97:280 98:915 99:37 101:210 103:336
106:70 107:61 108:58 109:1047 110:674 111:795
112:321 113:482 114:570 115:698 116:902 117:706
118:905 119:1228 120:337 121:700 122:1607 123:1025
124:1367 125:1384 128:248 129:178 130:167 131:580
132:112 133:21 134:214 135:54 136:213 137:139
138:288 139:134 140:496 141:292 142:513 143:416
144:494 145:64 146:473 147:227 148:689 149:265
150:152 151:193 152:446 153:178 154:7 155:387
156:206 157:361 158:151 159:466 160:322 161:206
162:336 163:179 164:512 165:397 166:538 167:435
168:744 169:146 170:865 171:84 172:1 173:1676
174:663 175:418 176:276 177:285 178:1056 180:1103
181:37 182:633 183:202 184:382 185:1 186:1513
187:668 188:933 189:857 190:5192 192:5950 193:5037
194:3557 195:3128 196:1253 197:187 198:3638 199:4148
200:5520 201:1648 202:8580 203:8486 204:4302 205:2385
206:2730 207:2837 208:4152 209:3544 210:2723 211:1460
212:2104 213:1792 214:786 215:89 216:4977 217:1610
218:564 219:339 220:1243 221:514 222:343 223:285
End of report
