Routing Table Report 00:00 GMT Tue 13 Mar, 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: 403968
Prefixes after maximum aggregation: 172073
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194938
Total ASes present in the Internet Routing Table: 40376
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32843
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5461
Transit-only ASes present in the Internet Routing Table: 152
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5431
Unregistered ASNs in the Routing Table: 208
Number of 32-bit ASNs allocated by the RIRs: 2315
Number of 32-bit ASNs visible in the Routing Table: 2072
Prefixes from 32-bit ASNs in the Routing Table: 4951
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 612
Number of addresses announced to Internet: 2526379735
Equivalent to 150 /8s, 149 /16s and 126 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170076
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96471
Total APNIC prefixes after maximum aggregation: 30827
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92945
Unique aggregates announced from the APNIC address blocks: 39424
APNIC Region origin ASes present in the Internet Routing Table: 4650
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 742
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640890624
Equivalent to 38 /8s, 51 /16s and 55 /24s
Percentage of available APNIC address space announced: 81.3
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: 151292
Total ARIN prefixes after maximum aggregation: 77807
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122646
Unique aggregates announced from the ARIN address blocks: 49878
ARIN Region origin ASes present in the Internet Routing Table: 14957
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1570
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806448642
Equivalent to 48 /8s, 17 /16s and 110 /24s
Percentage of available ARIN address space announced: 64.1
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: 102631
Total RIPE prefixes after maximum aggregation: 53052
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93299
Unique aggregates announced from the RIPE address blocks: 56959
RIPE Region origin ASes present in the Internet Routing Table: 16352
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2641
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1415
Number of RIPE addresses announced to Internet: 501804428
Equivalent to 29 /8s, 232 /16s and 237 /24s
Percentage of available RIPE address space announced: 80.8
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: 39509
Total LACNIC prefixes after maximum aggregation: 8142
LACNIC Deaggregation factor: 4.85
Prefixes being announced from the LACNIC address blocks: 39148
Unique aggregates announced from the LACNIC address blocks: 19714
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.87
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 293
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 474
Number of LACNIC addresses announced to Internet: 98150152
Equivalent to 5 /8s, 217 /16s and 167 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8790
Total AfriNIC prefixes after maximum aggregation: 2107
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6875
Unique aggregates announced from the AfriNIC address blocks: 2169
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.15
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.6
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: 31566080
Equivalent to 1 /8s, 225 /16s and 169 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1928 11102 679 Korea Telecom (KIX)
17974 1737 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1644 303 87 TPG Internet Pty Ltd
4755 1568 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1201 91 510 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1159 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd.
18101 949 130 156 Reliance Infocom Ltd Internet
4808 921 1875 266 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
7029 3413 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1876 680 127 AppliedTheory Corporation
20115 1635 1555 634 Charter Communications
4323 1566 1040 365 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1422 259 758 Mediacom Communications Corp
7018 1272 10927 833 AT&T WorldNet Services
2386 1163 493 860 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
8402 1828 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 LDCOM NETWORKS
286 1071 854 202 KPNQwest Backbone AS
34984 660 188 171 Tellcom Iletisim Hizmetleri
12479 644 648 54 Uni2 Autonomous System
6830 641 1927 412 UPC Distribution Services
20940 624 202 486 Akamai Technologies European
8551 602 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1761 326 160 TVCABLE BOGOTA
28573 1682 1092 57 Types of queries are: POCs, o
8151 1522 2996 343 Uninet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 899 676 30 Types of queries are: POCs, o
27947 678 68 110 Telconet S.A
11172 634 91 72 Alestra
22047 582 322 17 Types of queries are: POCs, o
6503 576 418 66 AVANTEL, S.A.
3816 559 240 90 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
8452 1251 958 13 TEDATA
24863 832 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 182 80 8 RAYA Telecom - Egypt
33776 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 15 16 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
7029 3413 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
4766 1928 11102 679 Korea Telecom (KIX)
1785 1876 680 127 AppliedTheory Corporation
8402 1828 544 16 Corbina telecom
10620 1761 326 160 TVCABLE BOGOTA
17974 1737 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1682 1092 57 Types of queries are: POCs, o
7545 1644 303 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3404 3206 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1828 1812 Corbina telecom
1785 1876 1749 AppliedTheory Corporation
17974 1737 1700 PT TELEKOMUNIKASI INDONESIA
28573 1682 1625 Types of queries are: POCs, o
10620 1761 1601 TVCABLE BOGOTA
7545 1644 1557 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications, Inc.
4755 1568 1408 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 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
10.29.245.1/32 286 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
10.29.245.27/32 286 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
23.27.0.0/20 54500 EGIHosting
23.27.0.0/16 54500 EGIHosting
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 /10:28 /11:81 /12:235
/13:458 /14:824 /15:1507 /16:12328 /17:6503 /18:10784
/19:21019 /20:29733 /21:29842 /22:40323 /23:37646 /24:210995
/25:69 /26:76 /27:110 /28:278 /29:106 /30:510
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3069 3413 Windstream Communications Inc
6389 2102 3404 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1806 1828 Corbina telecom
10620 1658 1761 TVCABLE BOGOTA
30036 1371 1422 Mediacom Communications Corp
11492 1125 1162 Cable One
8452 1061 1251 TEDATA
1785 1060 1876 AppliedTheory Corporation
7011 1042 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:525 2:776 4:18 6:3 8:394 12:1964
13:1 14:601 15:12 16:3 17:7 20:8
23:140 24:1759 27:1236 31:980 32:124 33:1
34:2 36:9 37:245 38:785 39:4 40:122
41:3020 42:129 44:3 46:1410 47:3 49:345
50:512 52:13 54:5 55:9 56:3 57:45
58:957 59:498 60:284 61:1201 62:984 63:2029
64:4162 65:2283 66:4508 67:2072 68:1342 69:3280
70:931 71:312 72:1810 73:1 74:2624 75:482
76:332 77:977 78:967 79:502 80:1213 81:896
82:645 83:546 84:617 85:1190 86:736 87:921
88:350 89:1578 90:286 91:4571 92:517 93:1397
94:1381 95:1123 96:378 97:316 98:818 99:38
100:5 101:243 103:878 106:64 107:172 108:201
109:1559 110:752 111:861 112:442 113:554 114:618
115:803 116:910 117:723 118:917 119:1259 120:334
121:707 122:1626 123:1090 124:1387 125:1343 128:542
129:195 130:265 131:579 132:170 133:21 134:239
135:63 136:212 137:185 138:275 139:157 140:485
141:236 142:390 143:421 144:497 145:69 146:487
147:252 148:761 149:300 150:158 151:176 152:449
153:171 154:7 155:444 156:212 157:383 158:162
159:519 160:329 161:245 162:344 163:186 164:531
165:414 166:564 167:463 168:812 169:149 170:846
171:118 172:4 173:1737 174:589 175:444 176:553
177:540 178:1286 180:1219 181:67 182:775 183:285
184:445 185:1 186:2101 187:843 188:1046 189:1206
190:5517 192:6008 193:5602 194:4490 195:3686 196:1289
197:168 198:3637 199:4434 200:5757 201:1768 202:8426
203:8726 204:4361 205:2449 206:2776 207:2797 208:4090
209:3627 210:2785 211:1479 212:2010 213:1882 214:863
215:103 216:5065 217:1523 218:543 219:333 220:1236
221:553 222:347 223:322
End of report