The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, November 6, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Thu 07 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 466811
Prefixes after maximum aggregation: 188033
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233531
Total ASes present in the Internet Routing Table: 45325
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 35369
Origin ASes announcing only one prefix: 16297
Transit ASes present in the Internet Routing Table: 5843
Transit-only ASes present in the Internet Routing Table: 157
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 813
Unregistered ASNs in the Routing Table: 217
Number of 32-bit ASNs allocated by the RIRs: 5306
Number of 32-bit ASNs visible in the Routing Table: 4113
Prefixes from 32-bit ASNs in the Routing Table: 12769
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 961
Number of addresses announced to Internet: 2646906880
Equivalent to 157 /8s, 196 /16s and 152 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161823

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109035
Total APNIC prefixes after maximum aggregation: 33157
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111155
Unique aggregates announced from the APNIC address blocks: 47407
APNIC Region origin ASes present in the Internet Routing Table: 4856
APNIC Prefixes per ASN: 22.89
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 811
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 729
Number of APNIC addresses announced to Internet: 724047104
Equivalent to 43 /8s, 40 /16s and 21 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162214
Total ARIN prefixes after maximum aggregation: 81341
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163217
Unique aggregates announced from the ARIN address blocks: 75886
ARIN Region origin ASes present in the Internet Routing Table: 15909
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6018
ARIN Region transit ASes present in the Internet Routing Table: 1629
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 33
Number of ARIN addresses announced to Internet: 1072957952
Equivalent to 63 /8s, 244 /16s and 10 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118273
Total RIPE prefixes after maximum aggregation: 60872
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 121912
Unique aggregates announced from the RIPE address blocks: 78661
RIPE Region origin ASes present in the Internet Routing Table: 17488
RIPE Prefixes per ASN: 6.97
RIPE Region origin ASes announcing only one prefix: 8289
RIPE Region transit ASes present in the Internet Routing Table: 2815
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2458
Number of RIPE addresses announced to Internet: 656114176
Equivalent to 39 /8s, 27 /16s and 130 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52136
Total LACNIC prefixes after maximum aggregation: 9932
LACNIC Deaggregation factor: 5.25
Prefixes being announced from the LACNIC address blocks: 57216
Unique aggregates announced from the LACNIC address blocks: 26750
LACNIC Region origin ASes present in the Internet Routing Table: 2034
LACNIC Prefixes per ASN: 28.13
LACNIC Region origin ASes announcing only one prefix: 553
LACNIC Region transit ASes present in the Internet Routing Table: 387
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 887
Number of LACNIC addresses announced to Internet: 142170624
Equivalent to 8 /8s, 121 /16s and 90 /24s
Percentage of available LACNIC address space announced: 84.7

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11711
Total AfriNIC prefixes after maximum aggregation: 2594
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12349
Unique aggregates announced from the AfriNIC address blocks: 4050
AfriNIC Region origin ASes present in the Internet Routing Table: 673
AfriNIC Prefixes per ASN: 18.35
AfriNIC Region origin ASes announcing only one prefix: 195
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48093696
Equivalent to 2 /8s, 221 /16s and 218 /24s
Percentage of available AfriNIC address space announced: 47.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2705 902 91 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 644 Korea Telecom (KIX)
7545 2098 319 112 TPG Internet Pty Ltd
4755 1787 391 188 TATA Communications formerly
9829 1553 1242 46 BSNL National Internet Backbo
4808 1286 2189 364 CNCGROUP IP network: China169
9498 1213 309 74 BHARTI Airtel Ltd.
9583 1189 91 512 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1091 380 161 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2190 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1682 1654 607 Charter Communications
4323 1637 1102 420 Time Warner Telecom
701 1504 11145 782 MCI Communications Services,
30036 1384 313 577 Mediacom Communications Corp
7018 1348 17796 882 AT&T WorldNet Services
6983 1292 756 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1897 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1130 416 865 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
6830 775 2328 427 UPC Distribution Services
8551 764 370 41 Bezeq International
12479 675 798 55 Uni2 Autonomous System
35228 540 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3441 1784 85 NET Servicos de Comunicao S.A
10620 2642 428 237 TVCABLE BOGOTA
7303 1620 1080 336 Telecom Argentina Stet-France
18881 1533 844 20 Global Village Telecom
8151 1353 2853 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 813 93 89 Telconet S.A
6147 791 373 27 Telefonica Del Peru
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 893 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 408 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 227 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3441 1784 85 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2705 902 91 PT TELEKOMUNIKASI INDONESIA
10620 2642 428 237 TVCABLE BOGOTA
22773 2190 2939 138 Cox Communications, Inc.
4766 2137 11550 644 Korea Telecom (KIX)
7545 2098 319 112 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
8402 1897 544 17 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2705 2614 PT TELEKOMUNIKASI INDONESIA
10620 2642 2405 TVCABLE BOGOTA
22773 2190 2052 Cox Communications, Inc.
7545 2098 1986 TPG Internet Pty Ltd
1785 2028 1902 PaeTec Communications, Inc.
8402 1897 1880 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
4755 1787 1599 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:474 /14:917 /15:1603 /16:12762 /17:6695 /18:11165
/19:22920 /20:32666 /21:35387 /22:49663 /23:43488 /24:248636
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1566 1897 OJSC "Vimpelcom"
22773 1455 2190 Cox Communications, Inc.
30036 1230 1384 Mediacom Communications Corp
11492 1199 1240 Cable One
1785 1080 2028 PaeTec Communications, Inc.
6983 1032 1292 ITC^Deltacom
22561 970 1247 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:883 2:846 3:3 4:17 5:1020 6:21
8:615 12:1891 13:3 14:891 15:11 16:3
17:18 18:19 20:21 23:517 24:1742 27:1605
31:1484 32:45 33:2 34:5 36:83 37:1905
38:922 39:4 40:178 41:3227 42:234 44:14
46:2017 47:10 49:676 50:829 52:12 54:42
55:8 56:4 57:26 58:1086 59:573 60:375
61:1465 62:1206 63:1988 64:4357 65:2341 66:4144
67:2098 68:1104 69:3284 70:869 71:490 72:2037
74:2554 75:328 76:295 77:1167 78:1057 79:630
80:1290 81:1022 82:653 83:629 84:582 85:1231
86:383 87:1006 88:563 89:1556 90:150 91:5643
92:613 93:1604 94:2015 95:1597 96:512 97:344
98:1046 99:39 100:30 101:625 103:3529 105:527
106:131 107:211 108:534 109:1901 110:971 111:1102
112:592 113:808 114:751 115:1043 116:1002 117:827
118:1174 119:1261 120:358 121:748 122:1839 123:1250
124:1324 125:1430 128:673 129:228 130:328 131:667
132:365 133:157 134:554 135:67 136:279 137:268
138:350 139:177 140:192 141:332 142:540 143:407
144:493 145:88 146:523 147:393 148:773 149:368
150:154 151:587 152:409 153:206 154:52 155:490
156:289 157:423 158:278 159:687 160:360 161:457
162:826 163:226 164:631 165:584 166:258 167:634
168:1046 169:125 170:1119 171:182 172:27 173:1602
174:686 175:513 176:1301 177:2426 178:1961 179:211
180:1581 181:831 182:1340 183:463 184:674 185:996
186:2579 187:1479 188:1820 189:1244 190:7255 192:7101
193:5416 194:4032 195:3356 196:1326 197:1048 198:4745
199:5486 200:6060 201:2509 202:8927 203:8882 204:4530
205:2646 206:2840 207:2831 208:3988 209:3652 210:2933
211:1558 212:2133 213:1978 214:894 215:90 216:5409
217:1670 218:626 219:321 220:1274 221:566 222:326
223:502

End of report
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