Routing Table Report 00:00 GMT Wed 24 Aug, 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: 372306
Prefixes after maximum aggregation: 167935
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182750
Total ASes present in the Internet Routing Table: 38603
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 32009
Origin ASes announcing only one prefix: 15390
Transit ASes present in the Internet Routing Table: 5243
Transit-only ASes present in the Internet Routing Table: 147
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4277
Unregistered ASNs in the Routing Table: 654
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 1351
Prefixes from 32-bit ASNs in the Routing Table: 3120
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 125
Number of addresses announced to Internet: 2470972687
Equivalent to 147 /8s, 72 /16s and 13 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154331
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90421
Total APNIC prefixes after maximum aggregation: 29363
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 87043
Unique aggregates announced from the APNIC address blocks: 37758
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 717
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: 74
Number of APNIC addresses announced to Internet: 624530432
Equivalent to 37 /8s, 57 /16s and 148 /24s
Percentage of available APNIC address space announced: 79.2
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: 145885
Total ARIN prefixes after maximum aggregation: 75385
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117446
Unique aggregates announced from the ARIN address blocks: 47080
ARIN Region origin ASes present in the Internet Routing Table: 14634
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5616
ARIN Region transit ASes present in the Internet Routing Table: 1534
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804119832
Equivalent to 47 /8s, 237 /16s and 229 /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: 89775
Total RIPE prefixes after maximum aggregation: 49937
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82151
Unique aggregates announced from the RIPE address blocks: 53545
RIPE Region origin ASes present in the Internet Routing Table: 15903
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7911
RIPE Region transit ASes present in the Internet Routing Table: 2519
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 969
Number of RIPE addresses announced to Internet: 488425676
Equivalent to 29 /8s, 28 /16s and 200 /24s
Percentage of available RIPE address space announced: 78.7
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: 34509
Total LACNIC prefixes after maximum aggregation: 7736
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33674
Unique aggregates announced from the LACNIC address blocks: 17306
LACNIC Region origin ASes present in the Internet Routing Table: 1506
LACNIC Prefixes per ASN: 22.36
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 292
Number of LACNIC addresses announced to Internet: 87782920
Equivalent to 5 /8s, 59 /16s and 118 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8388
Total AfriNIC prefixes after maximum aggregation: 2078
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6485
Unique aggregates announced from the AfriNIC address blocks: 2077
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.1
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: 26918144
Equivalent to 1 /8s, 154 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1932 11038 643 Korea Telecom (KIX)
17974 1917 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 84 TPG Internet Pty Ltd
4755 1530 374 163 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1075 79 497 Sify Limited
17488 1029 190 143 Hathway IP Over Cable Interne
4808 1009 2040 285 CNCGROUP IP network: China169
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 3583 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1821 681 124 AppliedTheory Corporation
7029 1616 1033 208 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
20115 1587 1537 635 Charter Communications
22773 1441 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1365 7084 895 AT&T WorldNet Services
2386 1231 516 892 AT&T Data Communications Serv
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
286 1039 798 193 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 540 107 182 Tellcom Iletisim Hizmetleri
3292 520 2080 404 TDC Tele Danmark
6830 520 1794 320 UPC Distribution Services
20940 482 140 374 Akamai Technologies European
8866 457 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1600 294 163 TVCABLE BOGOTA
8151 1435 2751 353 Uninet S.A. de C.V.
28573 1261 996 67 Types of queries are: POCs, o
7303 1063 578 175 Telecom Argentina Stet-France
14420 707 56 86 Types of queries are: POCs, o
6503 610 450 76 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 569 55 83 Telconet S.A
10481 548 430 20 Prima S.A.
3816 528 232 99 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 808 145 58 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 230 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt
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 3583 3817 228 bellsouth.net, inc.
23456 3120 742 1674 >>UNKNOWN<<
4766 1932 11038 643 Korea Telecom (KIX)
17974 1917 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1821 681 124 AppliedTheory Corporation
7029 1616 1033 208 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
10620 1600 294 163 TVCABLE BOGOTA
20115 1587 1537 635 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 1917 1886 PT TELEKOMUNIKASI INDONESIA
1785 1821 1697 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1574 1490 TPG Internet Pty Ltd
23456 3120 1446 >>UNKNOWN<<
10620 1600 1437 TVCABLE BOGOTA
7029 1616 1408 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1530 1367 Videsh Sanchar Nigam Ltd. Aut
22773 1441 1344 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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:460 /14:804 /15:1447 /16:12054 /17:6174 /18:10234
/19:20089 /20:27746 /21:27133 /22:36056 /23:34801 /24:193110
/25:81 /26:85 /27:113 /28:293 /29:126 /30:540
/31:97 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3583 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1537 3120 >>UNKNOWN<<
10620 1495 1600 TVCABLE BOGOTA
7029 1301 1616 Windstream Communications Inc
11492 1106 1152 Cable One
7011 1057 1160 Citizens Utilities
1785 1053 1821 AppliedTheory Corporation
22773 935 1441 Cox Communications, Inc.
286 894 1039 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:359 2:44 4:19 5:1 6:3 8:345
12:1960 13:1 14:521 15:15 16:3 17:5
20:10 23:31 24:1690 27:877 31:515 32:149
33:4 34:2 36:4 38:737 40:107 41:2496
42:50 44:3 46:1068 47:3 49:219 50:413
52:13 54:2 55:7 56:2 57:45 58:861
59:501 60:376 61:1183 62:1096 63:1955 64:4054
65:2306 66:3972 67:1960 68:1287 69:3216 70:824
71:373 72:1875 73:1 74:2489 75:342 76:347
77:862 78:710 79:489 80:1133 81:831 82:509
83:479 84:699 85:1086 86:516 87:848 88:342
89:1549 90:224 91:4046 92:526 93:1141 94:1350
95:874 96:422 97:267 98:941 99:37 101:79
103:230 106:79 107:34 108:82 109:1020 110:648
111:730 112:306 113:412 114:559 115:698 116:1012
117:682 118:880 119:1195 120:318 121:706 122:1620
123:989 124:1312 125:1338 128:246 129:179 130:168
131:582 132:117 133:21 134:214 135:54 136:213
137:138 138:291 139:128 140:487 141:276 142:390
143:427 144:487 145:59 146:463 147:242 148:691
149:252 150:201 151:189 152:441 153:185 154:5
155:401 156:200 157:337 158:136 159:457 160:319
161:207 162:329 163:166 164:515 165:397 166:535
167:435 168:747 169:154 170:847 171:82 172:1
173:1661 174:629 175:396 176:157 177:223 178:1006
180:939 181:25 182:537 183:240 184:338 185:1
186:1374 187:697 188:938 189:851 190:5107 192:5953
193:5002 194:3551 195:3125 196:1242 197:143 198:3601
199:4067 200:5513 201:1482 202:8414 203:8460 204:4255
205:2344 206:2735 207:2819 208:4130 209:3505 210:2706
211:1466 212:2132 213:1778 214:777 215:70 216:4897
217:1613 218:554 219:355 220:1220 221:515 222:360
223:245
End of report
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