Routing Table Report 00:00 GMT Fri 20 Jan, 2012
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: 397059
Prefixes after maximum aggregation: 170420
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191215
Total ASes present in the Internet Routing Table: 39916
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32737
Origin ASes announcing only one prefix: 15541
Transit ASes present in the Internet Routing Table: 5304
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6751
Unregistered ASNs in the Routing Table: 1102
Number of 32-bit ASNs allocated by the RIRs: 2194
Number of 32-bit ASNs visible in the Routing Table: 1875
Prefixes from 32-bit ASNs in the Routing Table: 4536
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 123
Number of addresses announced to Internet: 2511375590
Equivalent to 149 /8s, 176 /16s and 140 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 166398
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95871
Total APNIC prefixes after maximum aggregation: 30525
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92233
Unique aggregates announced from the APNIC address blocks: 38966
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 727
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 133
Number of APNIC addresses announced to Internet: 635254784
Equivalent to 37 /8s, 221 /16s and 56 /24s
Percentage of available APNIC address space announced: 80.6
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: 150440
Total ARIN prefixes after maximum aggregation: 77373
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122158
Unique aggregates announced from the ARIN address blocks: 49111
ARIN Region origin ASes present in the Internet Routing Table: 14879
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1541
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804887048
Equivalent to 47 /8s, 249 /16s and 154 /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: 99345
Total RIPE prefixes after maximum aggregation: 52220
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 90352
Unique aggregates announced from the RIPE address blocks: 55678
RIPE Region origin ASes present in the Internet Routing Table: 16269
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2555
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1302
Number of RIPE addresses announced to Internet: 497854092
Equivalent to 29 /8s, 172 /16s and 166 /24s
Percentage of available RIPE address space announced: 80.2
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: 37875
Total LACNIC prefixes after maximum aggregation: 8121
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 37404
Unique aggregates announced from the LACNIC address blocks: 19281
LACNIC Region origin ASes present in the Internet Routing Table: 1569
LACNIC Prefixes per ASN: 23.84
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 422
Number of LACNIC addresses announced to Internet: 95456264
Equivalent to 5 /8s, 176 /16s and 140 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8759
Total AfriNIC prefixes after maximum aggregation: 2109
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6741
Unique aggregates announced from the AfriNIC address blocks: 2105
AfriNIC Region origin ASes present in the Internet Routing Table: 512
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.2
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: 30841088
Equivalent to 1 /8s, 214 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1910 11097 663 Korea Telecom (KIX)
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1635 303 86 TPG Internet Pty Ltd
4755 1524 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1424 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd.
18101 945 130 155 Reliance Infocom Ltd Internet
4808 931 1885 270 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 3448 3807 206 bellsouth.net, inc.
7029 3248 1033 214 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1864 680 124 AppliedTheory Corporation
20115 1618 1552 618 Charter Communications
4323 1602 1046 379 Time Warner Telecom
22773 1518 2909 108 Cox Communications, Inc.
30036 1494 266 702 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1305 7042 856 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 1628 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
286 1110 806 202 KPNQwest Backbone AS
15557 1096 2161 64 LDCOM NETWORKS
6830 645 1928 413 UPC Distribution Services
31148 643 35 9 FreeNet ISP
34984 638 188 172 Tellcom Iletisim Hizmetleri
20940 574 185 457 Akamai Technologies European
8551 573 360 81 Bezeq International
12479 556 639 55 Uni2 Autonomous System
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 1723 321 167 TVCABLE BOGOTA
28573 1585 1060 92 Types of queries are: POCs, o
8151 1498 2980 337 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 641 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 COLOMBIA TELECOMUNICACIONES S
6503 550 434 70 AVANTEL, S.A.
10481 547 429 25 Prima S.A.
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
8452 1031 958 13 TEDATA
24863 797 146 36 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
33776 225 12 20 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 189 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3448 3807 206 bellsouth.net, inc.
7029 3248 1033 214 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1910 11097 663 Korea Telecom (KIX)
1785 1864 680 124 AppliedTheory Corporation
10620 1723 321 167 TVCABLE BOGOTA
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1635 303 86 TPG Internet Pty Ltd
8402 1628 480 15 Corbina telecom
20115 1618 1552 618 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 3248 3034 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1864 1740 AppliedTheory Corporation
17974 1718 1682 PT TELEKOMUNIKASI INDONESIA
8402 1628 1613 Corbina telecom
10620 1723 1556 TVCABLE BOGOTA
7545 1635 1549 TPG Internet Pty Ltd
28573 1585 1493 Types of queries are: POCs, o
7552 1424 1417 Vietel Corporation
22773 1518 1410 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.60.152.0/21 29608 Absolight
37.61.0.0/17 28787 Bakinternet ISP, Azerbaijan
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 /11:80 /12:232
/13:457 /14:822 /15:1492 /16:12285 /17:6417 /18:10618
/19:20865 /20:29328 /21:29466 /22:39579 /23:37226 /24:206377
/25:66 /26:82 /27:109 /28:295 /29:114 /30:548
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2859 3248 Windstream Communications Inc
6389 2118 3448 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1618 1723 TVCABLE BOGOTA
8402 1607 1628 Corbina telecom
30036 1451 1494 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1064 1864 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1031 1148 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:473 4:19 5:1 6:3 8:380
12:1952 13:1 14:587 15:11 16:3 17:6
20:9 23:111 24:1719 27:1181 31:869 32:124
33:2 34:2 36:8 37:96 38:798 39:1
40:114 41:2914 42:88 43:1 44:3 46:1233
47:3 49:322 50:520 52:13 55:8 56:2
57:51 58:954 59:491 60:346 61:1191 62:959
63:1981 64:4132 65:2305 66:4417 67:2052 68:1340
69:3255 70:968 71:428 72:1831 73:1 74:2703
75:458 76:332 77:965 78:896 79:522 80:1194
81:872 82:575 83:536 84:598 85:1160 86:751
87:918 88:357 89:1599 90:258 91:4444 92:532
93:1537 94:1365 95:1079 96:427 97:299 98:791
99:38 100:18 101:257 103:662 106:10 107:133
108:130 109:1471 110:704 111:842 112:432 113:526
114:618 115:768 116:893 117:743 118:922 119:1273
120:356 121:697 122:1626 123:1064 124:1369 125:1351
128:541 129:196 130:214 131:591 132:161 133:21
134:233 135:59 136:213 137:151 138:288 139:157
140:490 141:260 142:380 143:405 144:509 145:68
146:487 147:236 148:693 149:280 150:166 151:193
152:446 153:170 154:7 155:413 156:210 157:368
158:154 159:510 160:320 161:221 162:339 163:188
164:530 165:412 166:561 167:457 168:852 169:148
170:832 171:105 172:4 173:1800 174:587 175:438
176:358 177:461 178:1186 180:1252 181:43 182:707
183:275 184:437 185:1 186:1513 187:842 188:1046
189:1169 190:5317 192:6014 193:5490 194:4240 195:3442
196:1295 197:168 198:3637 199:4324 200:5644 201:1696
202:8495 203:8602 204:4344 205:2435 206:2769 207:2810
208:4035 209:3571 210:2770 211:1483 212:2013 213:1824
214:847 215:95 216:5013 217:1481 218:561 219:342
220:1259 221:557 222:326 223:270
End of report
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